You are allowed to download 3 books which are hidden in a secret directory you cannot see or access. At three books the app insists you need to upgrade to PRO and refused to download more books. None of this is mentioned on Google Play and is deceitful. Deleting one book does not allow you to download another. Page control is very coarse but works. Impossible to go to a specific page without a lot of thumbing the screen. In other apps the pages can be made to fly by if you throw the pages up or down. Not here. The page moved only as long as your finger is on the screen. There should be a paging feature where you can tap on the left or right side of screen and go to next page. First time you run the app it works ok. However the second time you return to discover screen the app wheel spins for about 4 minutes... Seems to be downloading media?? After that it works ok again. Will be deleting the app once I read the two books I have left as it won't let me download more.

Lots of great books, but the user interface is kind of clunky & not exactly intuitive. Edit: As other users pointed out, it is no longer possible to scroll through the pages, thus making it impossible to read any of the books! I'm not sure if this is a result of a recent Android update or what, but it used to work & now it doesn't. Since the app hasn't been updated any time recently, maybe the developers should consider that....