Listen Audiobook Player does not collect any personal information. All permissions used are required for specific features of the app to work.
Listen Audiobook Player uses the Firebase reporting library to help identify problems. When a crash occurs it will report a stack trace of the code that caused the crash, along with some non-personal information such as Android version, app version, device model, etc. No personal information is ever transmitted. Firebase reporting can also be disabled in Settings > Automatic Behaviors > Crash Reporter.