OpenStax CNX

Need additional study help for your Chemistry class? Always wanted to learn the basics of reading music, but never had the time or the right book? Looking to explore new subjects or topics, all for FREE? OpenStax CNX provides free textbooks covering Science, Mathematics, Engineering, Programming, Music and more. This includes the peer-reviewed OpenStax College textbooks. Key features are
- View textbooks in the app.
- in-book search
- Returns you to previous location in book
- Search OpenStax CNX for the content you need.
- Take notes in the app, export them as text files to your phone or share via email or text.
- Share the great content you find with others via email, text, Facebook, Twitter, etc.
- Save your Favorites for quick access when you return to the app.

All for FREE.

Permissions used by the app:

Internet - used to retrieve content from OpenStax CNX. App is TOTALLY AD FREE!
Write External Storage - used to export notes as text files
Access Network State - used to check if a data connection is available before retrieving content.

OpenStax CNX, http://cnx.org, is an open source project and is affiliated with Rice University. The Android app is open source too.