A free program for Android, by Tunahan Özataç.
Book Bubble is an Android app that allows you to create your own library of e-books and audiobooks.
It's the easiest way to manage your e-book and audiobook collection, and it's free!
Once you have installed it, all you have to do is to log in, select the category you want, and start reading.
How does it work?
If you already have a list of books in your library, you can easily select the one you want to read, or listen to.
If you don't have any books in your library, you can create one in seconds. Just choose the category, add a title, and start reading.
