Using LGPL library in Paid Android App [closed]

Answer 1

Using LGPL in an android free or paid app is legal, but to be compliant with the LGPL you have to:

1. Give the user indication of the library used and where to find the original code;
2. Configure proguard to not obfuscate the code covered by LGPL;
3. Avoid any check in your app about signature compliance;
4. Give to the user indication of how replace the library.

For point 4 you can indicate to use dex2jar, replace the LGPL code and re-sign the APK. It needs a lot of work for the user but it is possible to do it and allow the final user to recombine or relink the code as LGPL says. In addition, if your app uses any google services, the user need to create an account to generate the own api key and so on.