Awful Interface and Experience
The first problem occurs before you even download your first book. I signed up using Google. Guess what? The option of logging in via Google isn't even there! I don't remember exactly what I did to make it visible; I just randomly tapped around the screen to make it visible.
The app's interface overall is a mess, with so many random empty spaces and bars around the app. A mobile developer intern can do better.
When reading a book, I couldn't figure out how to exit. After messing around, you must press on a space in the book to show the in-book menu. The menu is also a mess, with unaligned texts; adjusting the font size is a nightmare because the sliders don't even lock, and nothing is evenly spaced.
Speaking of adjusting the text size, if you change the font size, the text layout in the book gets messed up, too; there will be random empty spaces.
Overall, the app's functionality is okay, but the interface is horrible.