Audiobook Reader for Public Domain Books and Private Books
A privacy focused audio book app. You can listen to public domain audio books on LibriVox and Internet Archive.
Opt for the Plus subscription, you can
* access to books and albums from your personal NAS.
* share the contents with multiple apps over multiple platforms
If you don't want the Plus features and are not comfortable with signing in then we have Carta for you:
https://play.google.com/store/apps/details?id=com.innomatic.cartaapp