FAQ

What phones are supported by the SleepScore app? 

Because every single phone has a different speaker and microphone set up, we need to verify the performance of each phone handset to ensure accuracy. The following phones have been validated for accuracy and are supported by SleepScore: 

Apple 

iOS software 11.2 and above
iPhone 6 & 6Plus
iPhone 6s & 6s Plus
iPhone 7 and 7 Plus
iPhone 8 and 8 Plus
iPhone X
iPhone XS
iPhone XS Max
iPhone XR
iPhone 11, 11 Pro, 11 Pro Max
iPhone 12, 12 Mini, 12 Pro, 12 Pro Max
iPhone 13, 13 mini, 13 Pro, 13 Pro Max
iPhone 14, 14 Plus, 14 Pro, 14 Pro Max

Android 

Please note, while we are continually working to validate more Android phones, not all Android models are fully supported. If you are using an unsupported Android model, you can now enroll in our beta program! This program allows us to test our sonar technology on a wider variety of phones at a much faster rate, helping us to ensure each phone model produces accurate scores. By joining, you acknowledge that your sleep data may not meet the same level of accuracy as that of validated phones. 

You can enroll by visiting the SleepScore App in the Play Store, downloading the app, completing onboarding, and then enrolling in beta when prompted in the app. Once you join the program, you’ll have access to in-depth sleep tracking plus other premiere SleepScore features.  

The beta program will last anywhere from 3-6 months, depending how many Android users enroll. When the program concludes, we’ll notify all beta program members in the app and share next steps to continue enjoying the SleepScore app. 

If you already have the SleepScore App on your Android and are using an unsupported device, you’ll be prompted to join the beta program when you open the ‘Go to Sleep’ tab in the app. 

Below you will find the current list of fully supported Android devices. 

Android software 6 and above
Samsung Galaxy S7 Edge and S7,  S8, S8+, S9, S9+, S20, S20 FE, S20+, S21 Ultra
Samsung Galaxy Note 8 and 9
Google Pixel 2 XL 

SleepScore™ is the world’s most accurate sleep improvement app. The SleepScore app uses Sonar Sensor Technology to track your breathing and body movement as you travel through each sleep stage. This data, combined with your profile and lifestyle information, gives us deep insights into your unique sleep patterns. It’s how we’re able to provide you with actionable, customized advice that’s delivered through the Sleep Guide.

In the app, you will also find a series of easy-to-use, interactive tools that allow you to work with your own sleep data, allowing you to properly understand the way you sleep. You’ll have access to your sleep history, so you can compare the quality of your rest to your daily lifestyle measures, like caffeine and alcohol intake. In addition, you’ll be eligible to receive sleep solutions in the form of product recommendations, all of which have been tested by our expert team at SleepScore Labs and selected to fit your individual sleep needs.

Your SleepScore™, powered by ResMed, is is an assessment of the quality and quantity of your sleep, plotted on a scale of 0 to 100, with the average SleepScore being 78. After tracking your sleep using SleepScore, your nightly SleepScore evaluates your rest against the following six parameters:

• Total sleep duration
• Time to fall asleep
• Time in light sleep
• Time in deep sleep
• Time in REM (Rapid-Eye-Movement) sleep
• Number of awakenings throughout the night

These variables are then measured against known sleep averages for your age and gender, which have been established by well-published research, expert advisors and the analysis of

over 6 million nights of sleep. Continued use of SleepScore in conjunction with adherence to the advice regarding sleep environment, health, and lifestyle should help you improve

your score.

Without requiring you to wear a device or place anything on your bed, SleepScore measures the quality and quantity of your sleep.

SleepScore is powered by ResMed™ Technology – used for tracking more than 6 million nights of sleep so far. This patented sonar technology uses your phone speakers and microphone as a way to send and receive silent signals, sensing your breathing and body movement so that your overall sleep can be reliably assessed. And we don’t record anything. Ever.

To maintain accuracy, SleepScore should not be used at the same time by two people in the same room.

Our technology harnesses the power of sonar to accurately track users as they move through different sleep stages. Sonar uses echo-location like what bats use to hunt at night. The bats make a noise and send sound waves into the environment around it. Those sound waves reflect off nearby objects, and some of them reflect back to the bats. Our app utilizes these same principles. The patented Sonar Technology uses your phone speakers as a way to send silent signals and those reflected waves are received back into the microphone.

Our advanced algorithm then interprets the shape and movement of the reflected waves to sense your breathing rate and body movement. The combination of these two signals is used to accurately decipher your movement through the various sleep stages at night.

SleepScore’s patented technology uses sonar as a way to measure your breathing rate and body movement to accurately stage your sleep.

Most apps use accelerometer technology or the microphone alone to measure your sleep. The problem with these methods is they can only detect movement, and often do so inaccurately. If these two signals are not getting reliable readings, they cannot accurately measure sleep. The SleepScore app, powered by ResMed technology, assesses both movement and breathing rate to get the most complete picture of your sleep. ResMed spent over 12 years and analyzed more

than 6 million nights of sleep to develop the algorithms that take these two signals to accurately measure your sleep.

When it comes to sleep tracking, you won’t find anything that compares to the accuracy of SleepScore. SleepScore is different from a variety of standpoints. Firstly, SleepScore is powered by patented ResMed technology that uses sonar as a way to measure your breathing rate and body movement to accurately determine your path through the sleep stages. Secondly, it uses the speaker and microphone from your smartphone to measure your sleep, so there’s no need for stand-alone hardware like a mattress strip or wearable fitness tracker. Thirdly, it sits on your bedside table, so it’s completely non-contact! Finally, its accuracy is far superior to other non-contact sleep tracking apps. SleepScore is based on the same best in-class algorithms that SleepScore Max uses, which have been validated against Polysomnography (PSG) and Actigraphy, the two clinically accepted standards of measuring sleep, with these results published in over 10 scientific peer-reviewed papers. The algorithms have been developed over 12 years with over 6 million nights of data.

So, rest assured, just like SleepScore Max, your SleepScore app is the most accurate non-contact way to measure your sleep outside of a sleep lab.

SleepScore uses sonar sensor technology, called echolocation, to track your breathing and body movement as you travel through each sleep stage. This data, combined with your profile and lifestyle information that you input, gives us deep insight into your unique sleep patterns and overall sleep health. It’s how we’re able to provide you with actionable, customized advice, delivered through the Sleep Guide.

In the app, you will also find a series of easy-to-use, interactive tools that allow you to work with your own sleep data to properly understand the way you sleep. You’ll have access to your sleep history, allowing you to compare the quality of your rest to your daily lifestyle measures, like caffeine and alcohol intake. In addition, you’ll be eligible to receive product recommendations, all of which have been tested by our expert team at SleepScore Labs and selected to fit your individual sleep needs.

There are easy to follow instructions inside the SleepScore app that describe how to accurately set up your phone for the most accurate reading of your nightly sleep.

Here are the steps you should implement to set up your phone accurately:

1.  Plug in your phone before you start tracking.
2.  Place your phone no more than arm’s length away from you.
3.  Make sure the phone is above the top of your mattress, about 6 inches is ideal.
4.  Point your speakers, which are located at the base on your phone, towards your chest.
5.  Position the phone slightly off the edge of the bedside table.
6. Keep your phone facing up. You can lock the phone if you prefer.

Some other things to keep an eye one are ensuring any phone case is not blocking your phone speakers in any way. For a quick visual tutorial check out this easy set-up video.

Still having problems? Watch this video for more troubleshooting tips.

Since you only need to use your smartphone to track your sleep, it’s important to set up your smartphone correctly to get the best measurement. If you don’t, this could negatively impact the accuracy of the sleep data gathered by SleepScore.

Check out this video for quick positioning tips.

Because of the unique capability of the patented SleepScore by ResMed technology, each supported smartphone is tested and calibrated to ensure the accuracy of SleepScore. For all supported phones, the main speakers and microphone are located at the bottom of the phone, where the charging plug is located. As a reminder, it’s important to always place your speakers pointing towards your chest while tracking your sleep. This will result in the most accurate reading of your sleep.

In some instances, smartphone cases have been shown to interfere with our sonar technology, resulting in an inaccurate SleepScore. If you are experiencing problems getting your SleepScore and you have a phone case, we suggest tracking with the case off to see if it helps.

You can also try cleaning your case and the area around your speakers and microphone to improve the results of your SleepScore app.

Check out this video to help guide you!

SleepScore requires the screen be facing up towards the ceiling because of microphone and speaker position on supported smartphones. This positioning ensures the most accurate results.

SleepScore can only record one person’s sleep at a time. Be sure to place the phone closest to the person who is tracking their sleep. Two people in a bed does not affect the accuracy of the results.

Currently, two SleepScore apps cannot track sleep in the same room at the same time, as they will interfere with each other and produce inaccurate results. However, multiple people can use SleepScore in the same home, provided that they are tracking in different rooms.

If you and your bed partner would both like to track your sleep using SleepScore, we recommend that one of you uses the SleepScore app and the other uses SleepScore Max.

Please be aware that because both apps need to access your microphone in order to work, it’s not possible to use the same smartphone to record a sleep session using both the SleepScore app and SleepScore Max at the same time.

SleepScore is intelligent enough to always track the closest person to the smartphone that’s tracking. Simply make sure that the smartphone deploying SleepScore is on the bedside table next to the person you want to track. Two sleepers in the same bed have been shown to not affect accuracy but note that only one partner may track using SleepScore at a time.

Currently, two SleepScore sessions cannot be in-progress in the same room at the same time, as they will interfere with each other and produce inaccurate results.

Yes, the SleepScore app works while also using a CPAP machine at night.

You should always start your sleep session as soon as you are ready to start falling asleep, so you get the best approximation of how long it takes you to fall asleep. You should stop your sleep session after your final wake period.

In order to give the most accurate readings, we do not automatically start or stop sleep tracking. We recommend you start tracking when you are trying to go to sleep and stop after your final wake to ensure most accurate results.

Occasionally, when starting a sleep session, it is possible to hear a small popping or clicking sound emitted through the phone’s speakers. SleepScore always performs a 30-second bedroom environment and phone check before the start of a new sleep session. In some cases, some frequent clicking may also be heard during the night but again, this is normal and varies from phone to phone

Chat with a sleep coach is a new Premium feature in the SleepScore app and SleepScore web portal. A Certified Sleep Coach will communicate with you via a text chat experience in the app, allowing for a real-time conversation to start discussing your sleep needs and challenges. You can try the Chat with a Sleep Coach feature today for credible advice, friendly encouragement, and ongoing support on your journey to better sleep. 

As an introductory offer, Chat with a sleep coach is currently included at no extra cost for all SleepScore Premium users. Free users can try a 7-day trial of a Premium membership to experience the chat feature. 

You can get started by opening the SleepScore app, tapping the solutions tab, then selecting Chat with a coach. Premium members can also access this feature by navigating to portal.sleepscore.com and logging into their SleepScore account. From there, you’ll see Chat with a Sleep Coach as an option on the left-hand navigation.  

SleepScore will continue recording your sleep if your phone is locked. Whether you keep your phone screen locked or unlocked, your accuracy will not be affected. If you don’t wish to lock the screen, the app screen will dim while tracking to ensure the brightness doesn’t disturb your sleep. If you utilize the Smart Alarm and lock your phone screen, you will need to unlock your phone before turning off the Smart Alarm.

Our extensive testing has shown that by plugging in your phone, SleepScore delivers the most stable results. It’s also important to plug your phone in to make sure your battery doesn’t die mid-session. If your phone dies during a sleep tracking session, you won’t get your full night’s sleep recording.

Yes, but tracking will be automatically paused any time you move the smartphone. This ensures that if the smartphone is in motion, it will not pick up poor signals and lead to inaccurate results.

During a sleep tracking session, other loud sounds in your bedroom or your phone’s positioning can interfere with the sonar sensor. To uphold SleepScore’s accuracy, if you pick up your phone during a sleep session, the tracking is paused until the phone is back on a level surface and no other apps are playing sounds. Sleep tracking will automatically resume at this point.

No. It’s possible other sounds from the smartphone in use will interfere with the sonar signal. SleepScore will automatically pause your sleep session if you are playing any sounds, taking a call, or using other apps on the smartphone during a sleep session. The sleep session will automatically resume once you place your phone back into position on your bedside table.

When the time changes in the spring and fall due to the start or end of Daylight Saving Time, your sleep record will still maintain accuracy. The SleepScore app will show your bedtime and morning wake-up time as they align with the world clock. You will notice in your sleep chart that on the night of a time change, the app will record two 1:00 AM time slots. Essentially, just as the clock hits 2:00 AM, the sleep chart record then rolls back to 1:00 AM. Rest assured you are not losing this recorded time asleep, as it is still being recorded as 2 separate hours.

Because of this, your sleep record will show your correct sleep duration. You are not required to do anything differently when tracking: the SleepScore app factors all of this in automatically.

The breathing rate feature plots your nightly average breathing rate in a week view. You can easily visually check your breathing rate data over time.  Your breathing rate is an important indicator of your overall health.  SleepScore measures your breathing rate constantly when you track your sleep, and now you can review your average breathing rate each night to check for any unusual increases that could be a sign of negative changes in your wellness.

Check out the feature by navigating to your history and tapping on the icon for breathing rate. Please note this feature is only currently available for iOS.

Average nightly breathing rates observed during sleep in adults normally range from 12 to 20 breaths per minute. Slightly higher or lower averages might also occasionally be observed and might be related to a physical condition. If you have questions or concerns about your breathing rate, please advise your healthcare professional. Check out the feature by navigating to your history and tapping on the icon for breathing rate. Please note this feature is only currently available for iOS.

Yes. Sonar uses sound waves and is not harmful. We encounter sound waves all the time in our every day life, simply by communicating with others and experiencing the world around us. The sound frequencies used in the SleepScore App are above the level of normal adult human hearing and well within the range that is considered safe.

And because the sound frequencies used in the SleepScore App are transferred via the air rather than applied directly to the body, the energy levels emitted are minimal and fall within the acceptable range highlighted in numerous publications and guidelines.

During a sleep tracking session, SleepScore and SleepScore Max only process the sonar signals in its range and ignores other sound frequencies. At the end of every sleep session, all audio data is destroyed, so no sound is ever stored or saved.

When tracking your sleep, SleepScore uses advanced sonar at sound frequencies that are known to be above the level of adult human hearing. We have had some infrequent instances of children and young adults being able to hear the sensor sounds. This is because younger people are able to hear different sound frequencies compared to adults.  It has not been shown to be an ongoing disturbance to children or young adults.

When tracking your sleep, SleepScore uses advanced sonar at sound frequencies that are known to be above the level of adult human hearing.  Due to their more sensitive hearing, it is possible that pets can hear the sonar frequencies. Our extensive testing has shown that this is not an ongoing concern for pets.

It’s possible that interference or incorrect positioning of your phone could affect the accuracy of the sleep tracking. Some possible causes include:

1.  Phone setup and positioning. Check out our set-up video for more details.
2. Interference with other sounds – sound machines, fans, stereo, TV, or other loud electronics.
3.  Phone cases that block speakers or microphone.
4.  Issues with your smartphone’s speakers or microphone that cause them to operate abnormally.
5.  Another SleepScore app recording a sleep session in the same room.
6.  Electronic interference from other electronic devices.
7.  If your smartphone becomes unplugged after starting a sleep session, the sleep tracking will automatically pause, causing you to get an incomplete reading of that night’s sleep.
8.  If you use your phone frequently during a sleep session, this automatically forces sleep tracking to automatically pause, resulting in a potentially inaccurate reading of your time asleep.

If sounds or other electronic devices are far enough away and on low volume, they should not affect your sleep tracking.

We always perform an interference check at the start of each sleep session to check your bedroom environment. However, for best results, we recommend you turn off any electronic devices that emit sounds. When you complete a sleep session in the morning, SleepScore will tell you if it picked up something from the nightly interference check.

It’s possible that interference or incorrect positioning of your phone could affect the accuracy of the sleep tracking. Some possible causes include:

1. Phone setup and positioning. Check out our set-up video for more details.
2.  Interference with other sounds – sound machines, fans, stereo, TV, or other loud electronics.
3.  Phone cases that block speakers or microphone.
4.  Issues with your smartphone’s speakers or microphone that cause them to operate abnormally.
5.  Another SleepScore app recording a sleep session in the same room.
6.  Electronic interference from other electronic devices.
7.  If your smartphone becomes unplugged after starting a sleep session, the sleep tracking will automatically pause, causing you to get an incomplete reading of that night’s sleep.
8.  If you use your phone frequently during a sleep session, this automatically forces sleep tracking to automatically pause, resulting in a potentially inaccurate reading of your time asleep.

If sounds or other electronic devices are far enough away and on low volume, they should not affect your sleep tracking.

We always perform an interference check at the start of each sleep session to check your bedroom environment. However, for best results, we recommend you turn off any electronic devices that emit sounds. When you complete a sleep session in the morning, SleepScore will tell you if it picked up something from the nightly interference check.

Depending on the location of your television, the volume level, and the type of sound being emitted, it is possible that television sounds may interfere with the accuracy of SleepScore.

We always perform an interference check at the start of a sleep session to check your bedroom environment. However, for best results, we recommend you turn off any electronic devices that emit sounds.

Depending on the location of your electronic devices, the volume level, and the type of sound being emitted, it is possible that electronic devices may interfere with the accuracy of SleepScore.

We always perform an interference check at the start of a sleep session to check your bedroom environment. However, for best results, we recommend you turn off any electronic devices that emit sounds.

Based on our extensive testing, bedding of all weights and densities have not been shown to interfere with sleep tracking or the accuracy of the results.

Depending on the location of your air conditioning or an electric fan, the volume level, and the type of sound being emitted, it is possible that air conditioning or an electric fan may interfere with the accuracy of SleepScore.

We always perform an interference check at the start of a sleep session to check your bedroom environment. However, for best results, we recommend you turn off any electronic devices that emit sounds.

It’s possible that interference or incorrect positioning of your phone could affect the accuracy of the sleep tracking. Some possible causes include:

1. Phone setup and positioning. Check out our set-up video for more details.
2.  Interference with other sounds – sound machines, fans, stereo, TV, or other loud electronics.
3.  Phone cases that block speakers or microphone.
4.  Issues with your smartphone’s speakers or microphone that cause them to operate abnormally.
5.  Another SleepScore app recording a sleep session in the same room.
6.  Electronic interference from other electronic devices.
7.  If your smartphone becomes unplugged after starting a sleep session, the sleep tracking will automatically pause, causing you to get an incomplete reading of that night’s sleep.
8.  If you use your phone frequently during a sleep session, this automatically forces sleep tracking to automatically pause, resulting in a potentially inaccurate reading of your time asleep.

If sounds or other electronic devices are far enough away and on low volume, they should not affect your sleep tracking.

We always perform an interference check at the start of each sleep session to check your bedroom environment. However, for best results, we recommend you turn off any electronic devices that emit sounds. When you complete a sleep session in the morning, SleepScore will tell you if it picked up something from the nightly interference check.

A zero SleepScore means that the sonar technology was paused through the entirety of your night. This is due to your smartphone playing audio from another source, such as directly from your phone speakers, through another app, or through a Bluetooth connected device, such as air pods or a speaker.

If you get a zero SleepScore in the morning, try to disconnect your smartphone from any Bluetooth devices before bedtime. You can also check to make sure there are no background apps playing audio prior to tracking.

While both methods are based on the same SleepScore by ResMed algorithm, SleepScore Max utilizes dedicated hardware that sits on your nightstand to track your sleep, while the SleepScore app uses just your smartphone microphone and speaker capabilities to track and measure your sleep.

Another key difference between the two tracking abilities is the different technology each uses. SleepScore Max uses safe, ultra-low power radio waves (1/10 of Bluetooth®) to send and receive signals that measure your breathing and movements. The SleepScore app utilizes patented sonar technology which uses your phone speakers as a way to send silent signals into your bedroom environment, and those reflected waves are received back into the microphone.

Because the SleepScore app uses your microphone and speakers to send and receive sonar signals, it cannot give any details about your bedroom environment. This is where SleepScore Max’s dedicated hardware comes into play. SleepScore Max’s environmental sensors measure your light and temperature levels every night, allowing you to set your bedroom to the best settings for optimal sleep.

Both of these sleep tracking mechanisms are based on the same SleepScore by ResMed algorithm, based on over 12 years of world class software development, with the algorithm being constantly updated and advanced based on over 6 million nights of sleep data and sleep norms. There may be a two to three-point score variation when the two are compared side by side, but this should normalize and produce consistent trends over time. Rest assured, either method you choose to use is the most accurate non-contact way to measure your sleep outside of a sleep lab.

Both the SleepScore app and SleepScore Max are based on the same SleepScore by ResMed algorithm. This algorithm is based on over 12 years of world class software development and is always being updated and advanced based on over 6 million nights of sleep data and sleep norms. There may be a two to three-point score variation when the two are compared side by side due to variations in technology, but this should normalize and produce consistent trends over time. Rest assured, either method you choose to use is the most accurate non-contact way to measure your sleep outside of a sleep lab.

Because SleepScore Max and the SleepScore app both require use of the microphone at the same time, it is currently not possible to use the two apps on the same smartphone to simultaneously track your sleep.

If you and your bed partner would both like to track your sleep using SleepScore, we recommend that one of you uses the SleepScore app and the other uses SleepScore Max.

Email us at support@sleepscorelabs.com.

At SleepScore Labs, we take your privacy very seriously, and we are committed to protecting the security of your personal information, including sensitive sleep data. Your sleep data is stored securely in the cloud on servers located in the United States and on your smartphone, providing you with constant access to your personal sleep records, history, and suggestions. Your data is only accessed through your personal user account. It is not publicly accessible. Learn more about the privacy of your data by checking out our entire Privacy Policy.

At SleepScore Labs, we believe that healthy sleep is critical to a healthy life. Our mission is to help the world sleep better and live better. Our team built SleepScore so that millions of people around the world could easily understand their sleep. We teamed up with sleep and behavioral experts to develop the Sleep Guide to provide you with actionable advice to help you reach your sleep goals.

With SleepScore, you can accurately track your sleep for free, forever. We’ll also give you 7 days of education and advice to help you begin to understand your sleep better.

For less than the cost of less than one Starbucks latte per month, our premium subscription will provide you with the following:

1.  You’ll have access to your detailed data and analytics, so you can better understand your sleep patterns based on your entire sleep history.
2.  We’ll let you know what your biggest sleep issue is based on your sleep data, provide expert guidance on how to achieve your specific sleep goal, and offer weekly challenges to improve your sleep.
3.  We’ll monitor your sleep patterns long-term and if we detect prolonged poor sleep, we will provide you with a series of risky-sleep questionnaires to check for any potential sleep disorders. We’ll then provide the results and 30 days of your data in a simple PDF report that you can take to your doctor.

Subscriptions are managed by Apple directly. Follow the steps below to view, change, or cancel your subscriptions from your iPhone. On your iPhone:

From the settings screen in your SleepScore app:

Click manage my subscription. (This will take you directly to your iPhone subscription settings)

Under Subscriptions, click Manage.

Click on the subscription that you want to manage.

Use the options to manage your subscription. You can choose a different subscription period or turn off Automatic Renewal.

Turn off Automatic Renewal to cancel a subscription. Your subscription will stop at the end of the current billing cycle.

On your Android phone:

On your Android phone, open the Google Play Store.

Tap Menu, then Subscriptions.

Tap the subscriptions you want to cancel.

Tap Cancel subscription.

Follow the onscreen instructions.

Important: Uninstalling an app from your Android phone will not automatically stop your subscription. You must cancel your subscription to end it. If you uninstall the app without cancelling your subscription, you will still be charged.

Because every single phone has a different speaker and microphone set up, we need to verify the performance of each phone handset to ensure accuracy. The following phones have been validated for accuracy and are supported by SleepScore:

Apple

iOS software 11.2 and above

iPhone 6 & 6Plus

iPhone 6s & 6s Plus

iPhone 7 and 7 Plus

iPhone 8 and 8 Plus

iPhone X

iPhone XS,

iPhone XS Max

iPhone XR

Android

Please note, while we are continually working to validate more Android phones, not all Android models are fully supported.  If you are using an unsupported Android model, you will still be able to track your sleep using your device, but some SleepScore app features and functionality may vary based on your device model.  

For the optimal experience, we recommend tracking your sleep on a fully supported device.  Below you will find the list of fully supported Android devices.

Android software 6 and above

Samsung Galaxy S7 Edge and S7

Samsung Galaxy S8 and S8+

Samsung Galaxy S9 and S9+

Samsung Galaxy Note 8 and 9

Google Pixel 2 XL

We continually validate and add new supported phones, so please check back regularly.

Copyright (c) 1998-2018 The OpenSSL Project.  All rights reserved. 

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 
3. All advertising materials mentioning features or use of this software must display the following acknowledgment: “This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/)” 
4. The names “OpenSSL Toolkit” and “OpenSSL Project” must not be used to endorse or promote products derived from this software without prior written permission. For written permission, please contact openssl-core@openssl.org. 
5. Products derived from this software may not be called “OpenSSL” nor may “OpenSSL” appear in their names without prior written permission of the OpenSSL Project. 
6. Redistributions of any form whatsoever must retain the followingacknowledgment:”This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/)” 

THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT “AS IS” AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

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This product includes cryptographic software written by Eric Young (eay@cryptsoft.com).  This product includes software written by Tim Hudson (tjh@cryptsoft.com). 

Original SSLeay License 

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Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 

All rights reserved. 

This package is an SSL implementation written by Eric Young (eay@cryptsoft.com). 

The implementation was written so as to conform with Netscapes SSL. 

This library is free for commercial and non-commercial use as long as the following conditions are adhered to.  The following conditions apply to all code found in this distribution, be it the RC4, RSA, lhash, DES, etc., code; not just the SSL code.  The SSL documentation included with this distribution is covered by the same copyright terms except that the holder is Tim Hudson (tjh@cryptsoft.com). 

Copyright remains Eric Young’s, and as such any Copyright notices inthe code are not to be removed. 

If this package is used in a product, Eric Young should be given attribution as the author of the parts of the library used. 

This can be in the form of a textual message at program startup or in documentation (online or textual) provided with the package. 

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 

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THIS SOFTWARE IS PROVIDED BY ERIC YOUNG “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

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“You” (or “Your”) shall mean an individual or Legal Entity
exercising permissions granted by this License.

“Source” form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
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“Object” form shall mean any form resulting from mechanical
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and conversions to other media types.

“Work” shall mean the work of authorship, whether in Source or
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any Contribution intentionally submitted for inclusion in the Work
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the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.

6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.

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the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.

END OF TERMS AND CONDITIONS

Eigen3 license:

Eigen is primarily MPL2 licensed. See COPYING.MPL2 and these links:
http://www.mozilla.org/MPL/2.0/
http://www.mozilla.org/MPL/2.0/FAQ.html

Some files contain third-party code under BSD or LGPL licenses, whence
the other COPYING.* files here.

All the LGPL code is either LGPL 2.1-only, or LGPL 2.1-or-later.
For this reason, the COPYING.LGPL file contains the LGPL 2.1 text.

If you want to guarantee that the Eigen code that you are #including
is licensed under the MPL2 and possibly more permissive licenses (like
BSD), #define this preprocessor symbol: EIGEN_MPL2_ONLY
For example, with most compilers, you could add this to your project
CXXFLAGS: -DEIGEN_MPL2_ONLY

This will cause a compilation error to be generated if you #include
any code that is LGPL licensed.

The Drive SDK code compiles and runs Eigen3 with flag EIGEN_MPL2_ONLY.

———————————————————————-
Mozilla Public License Version 2.0
==================================

1. Definitions
————–

1.1. “Contributor”
means each individual or legal entity that creates, contributes to
the creation of, or owns Covered Software.

1.2. “Contributor Version”
means the combination of the Contributions of others (if any) used
by a Contributor and that particular Contributor’s Contribution.

1.3. “Contribution”
means Covered Software of a particular Contributor.

1.4. “Covered Software”
means Source Code Form to which the initial Contributor has attached
the notice in Exhibit A, the Executable Form of such Source Code
Form, and Modifications of such Source Code Form, in each case
including portions thereof.

1.5. “Incompatible With Secondary Licenses”
means

(a) that the initial Contributor has attached the notice described
in Exhibit B to the Covered Software; or

(b) that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the
terms of a Secondary License.

1.6. “Executable Form”
means any form of the work other than Source Code Form.

1.7. “Larger Work”
means a work that combines Covered Software with other material, in
a separate file or files, that is not Covered Software.

1.8. “License”
means this document.

1.9. “Licensable”
means having the right to grant, to the maximum extent possible,
whether at the time of the initial grant or subsequently, any and
all of the rights conveyed by this License.

1.10. “Modifications”
means any of the following:

(a) any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered
Software; or

(b) any new file in Source Code Form that contains any Covered
Software.

1.11. “Patent Claims” of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the
License, by the making, using, selling, offering for sale, having
made, import, or transfer of either its Contributions or its
Contributor Version.

1.12. “Secondary License”
means either the GNU General Public License, Version 2.0, the GNU
Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
licenses.

1.13. “Source Code Form”
means the form of the work preferred for making modifications.

1.14. “You” (or “Your”)
means an individual or a legal entity exercising rights under this
License. For legal entities, “You” includes any entity that
controls, is controlled by, or is under common control with You. For
purposes of this definition, “control” means (a) the power, direct
or indirect, to cause the direction or management of such entity,
whether by contract or otherwise, or (b) ownership of more than
fifty percent (50%) of the outstanding shares or beneficial
ownership of such entity.

2. License Grants and Conditions
——————————–

2.1. Grants

Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:

(a) under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and

(b) under Patent Claims of such Contributor to make, use, sell, offer
for sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.

2.2. Effective Date

The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.

2.3. Limitations on Grant Scope

The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:

(a) for any code that a Contributor has removed from Covered Software;
or

(b) for infringements caused by: (i) Your and any other third party’s
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or

(c) under Patent Claims infringed by Covered Software in the absence of
its Contributions.

This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).

2.4. Subsequent Licenses

No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).

2.5. Representation

Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights
to grant the rights to its Contributions conveyed by this License.

2.6. Fair Use

This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.

2.7. Conditions

Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
in Section 2.1.

3. Responsibilities
——————-

3.1. Distribution of Source Form

All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients’ rights in the Source Code
Form.

3.2. Distribution of Executable Form

If You distribute Covered Software in Executable Form then:

(a) such Covered Software must also be made available in Source Code
Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
Form by reasonable means in a timely manner, at a charge no more
than the cost of distribution to the recipient; and

(b) You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter
the recipients’ rights in the Source Code Form under this License.

3.3. Distribution of a Larger Work

You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).

3.4. Notices

You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.

3.5. Application of Additional Terms

You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.

4. Inability to Comply Due to Statute or Regulation
—————————————————

If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.

5. Termination
————–

5.1. The rights granted under this License will terminate automatically
if You fail to comply with any of its terms. However, if You become
compliant, then the rights granted under this License from a particular
Contributor are reinstated (a) provisionally, unless and until such
Contributor explicitly and finally terminates Your grants, and (b) on an
ongoing basis, if such Contributor fails to notify You of the
non-compliance by some reasonable means prior to 60 days after You have
come back into compliance. Moreover, Your grants from a particular
Contributor are reinstated on an ongoing basis if such Contributor
notifies You of the non-compliance by some reasonable means, this is the
first time You have received notice of non-compliance with this License
from such Contributor, and You become compliant prior to 30 days after
Your receipt of the notice.

5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.

5.3. In the event of termination under Sections 5.1 or 5.2 above, all
end user license agreements (excluding distributors and resellers) which
have been validly granted by You or Your distributors under this License
prior to termination shall survive termination.

************************************************************************
* *
* 6. Disclaimer of Warranty *
* ————————- *
* *
* Covered Software is provided under this License on an “as is” *
* basis, without warranty of any kind, either expressed, implied, or *
* statutory, including, without limitation, warranties that the *
* Covered Software is free of defects, merchantable, fit for a *
* particular purpose or non-infringing. The entire risk as to the *
* quality and performance of the Covered Software is with You. *
* Should any Covered Software prove defective in any respect, You *
* (not any Contributor) assume the cost of any necessary servicing, *
* repair, or correction. This disclaimer of warranty constitutes an *
* essential part of this License. No use of any Covered Software is *
* authorized under this License except under this disclaimer. *
* *
************************************************************************

************************************************************************
* *
* 7. Limitation of Liability *
* ————————– *
* *
* Under no circumstances and under no legal theory, whether tort *
* (including negligence), contract, or otherwise, shall any *
* Contributor, or anyone who distributes Covered Software as *
* permitted above, be liable to You for any direct, indirect, *
* special, incidental, or consequential damages of any character *
* including, without limitation, damages for lost profits, loss of *
* goodwill, work stoppage, computer failure or malfunction, or any *
* and all other commercial damages or losses, even if such party *
* shall have been informed of the possibility of such damages. This *
* limitation of liability shall not apply to liability for death or *
* personal injury resulting from such party’s negligence to the *
* extent applicable law prohibits such limitation. Some *
* jurisdictions do not allow the exclusion or limitation of *
* incidental or consequential damages, so this exclusion and *
* limitation may not apply to You. *
* *
************************************************************************

8. Litigation
————-

Any litigation relating to this License may be brought only in the
courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions.
Nothing in this Section shall prevent a party’s ability to bring
cross-claims or counter-claims.

9. Miscellaneous
—————-

This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides
that the language of a contract shall be construed against the drafter
shall not be used to construe this License against a Contributor.

10. Versions of the License
—————————

10.1. New Versions

Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.

10.2. Effect of New Versions

You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.

10.3. Modified Versions

If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).

10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses

If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.

Exhibit A – Source Code Form License Notice
——————————————-

This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.

If it is not possible or desirable to put the notice in a particular
file, then You may include the notice in a location (such as a LICENSE
file in a relevant directory) where a recipient would be likely to look
for such a notice.

You may add additional accurate notices of copyright ownership.

Exhibit B – “Incompatible With Secondary Licenses” Notice
———————————————————

This Source Code Form is “Incompatible With Secondary Licenses”, as
defined by the Mozilla Public License, v. 2.0.
———————————————————————-

Lame license:

Copyright (c) 1999 Mark Taylor
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the
ree Software Foundation, Inc., 59 Temple Place – Suite 330,
Boston, MA 02111-1307, USA.

GNU LIBRARY GENERAL PUBLIC LICENSE
Version 2, June 1991

Copyright (C) 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.

[This is the first released version of the library GPL. It is
numbered 2 because it goes with version 2 of the ordinary GPL.]

Preamble

The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
Licenses are intended to guarantee your freedom to share and change
free software–to make sure the software is free for all its users.

This license, the Library General Public License, applies to some
specially designated Free Software Foundation software, and to any
other libraries whose authors decide to use it. You can use it for
your libraries, too.

When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.

To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if
you distribute copies of the library, or if you modify it.

For example, if you distribute copies of the library, whether gratis
or for a fee, you must give the recipients all the rights that we gave
you. You must make sure that they, too, receive or can get the source
code. If you link a program with the library, you must provide
complete object files to the recipients so that they can relink them
with the library, after making changes to the library and recompiling
it. And you must show them these terms so they know their rights.

Our method of protecting your rights has two steps: (1) copyright
the library, and (2) offer you this license which gives you legal
permission to copy, distribute and/or modify the library.

Also, for each distributor’s protection, we want to make certain
that everyone understands that there is no warranty for this free
library. If the library is modified by someone else and passed on, we
want its recipients to know that what they have is not the original
version, so that any problems introduced by others will not reflect on
the original authors’ reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that companies distributing free
software will individually obtain patent licenses, thus in effect
transforming the program into proprietary software. To prevent this,
we have made it clear that any patent must be licensed for everyone’s
free use or not licensed at all.

Most GNU software, including some libraries, is covered by the ordinary
GNU General Public License, which was designed for utility programs. This
license, the GNU Library General Public License, applies to certain
designated libraries. This license is quite different from the ordinary
one; be sure to read it in full, and don’t assume that anything in it is
the same as in the ordinary license.

The reason we have a separate public license for some libraries is that
they blur the distinction we usually make between modifying or adding to a
program and simply using it. Linking a program with a library, without
changing the library, is in some sense simply using the library, and is
analogous to running a utility program or application program. However, in
a textual and legal sense, the linked executable is a combined work, a
derivative of the original library, and the ordinary General Public License
treats it as such.

Because of this blurred distinction, using the ordinary General
Public License for libraries did not effectively promote software
sharing, because most developers did not use the libraries. We
concluded that weaker conditions might promote sharing better.

However, unrestricted linking of non-free programs would deprive the
users of those programs of all benefit from the free status of the
libraries themselves. This Library General Public License is intended to
permit developers of non-free programs to use free libraries, while
preserving your freedom as a user of such programs to change the free
libraries that are incorporated in them. (We have not seen how to achieve
this as regards changes in header files, but we have achieved it as regards
changes in the actual functions of the Library.) The hope is that this
will lead to faster development of free libraries.

The precise terms and conditions for copying, distribution and
modification follow. Pay close attention to the difference between a
“work based on the library” and a “work that uses the library”. The
former contains code derived from the library, while the latter only
works together with the library.

Note that it is possible for a library to be covered by the ordinary
General Public License rather than by this special one.

GNU LIBRARY GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

0. This License Agreement applies to any software library which
contains a notice placed by the copyright holder or other authorized
party saying it may be distributed under the terms of this Library
General Public License (also called “this License”). Each licensee is
addressed as “you”.

A “library” means a collection of software functions and/or data
prepared so as to be conveniently linked with application programs
(which use some of those functions and data) to form executables.

The “Library”, below, refers to any such software library or work
which has been distributed under these terms. A “work based on the
Library” means either the Library or any derivative work under
copyright law: that is to say, a work containing the Library or a
portion of it, either verbatim or with modifications and/or translated
straightforwardly into another language. (Hereinafter, translation is
included without limitation in the term “modification”.)

“Source code” for a work means the preferred form of the work for
making modifications to it. For a library, complete source code means
all the source code for all modules it contains, plus any associated
interface definition files, plus the scripts used to control compilation
and installation of the library.

Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running a program using the Library is not restricted, and output from
such a program is covered only if its contents constitute a work based
on the Library (independent of the use of the Library in a tool for
writing it). Whether that is true depends on what the Library does
and what the program that uses the Library does.

1. You may copy and distribute verbatim copies of the Library’s
complete source code as you receive it, in any medium, provided that
you conspicuously and appropriately publish on each copy an
appropriate copyright notice and disclaimer of warranty; keep intact
all the notices that refer to this License and to the absence of any
warranty; and distribute a copy of this License along with the
Library.

You may charge a fee for the physical act of transferring a copy,
and you may at your option offer warranty protection in exchange for a
fee.

2. You may modify your copy or copies of the Library or any portion
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