This app worked ok for some time. Then recently it just would not start. I have it installed on a mot g7, Rebooting the phone didn't work. Reinstalling the app also didn't work. Taking off the anti virus similarly did not work. Then I rebooted the phone again and the app started. But then I had to download books from my library again. This has happened before and maybe is linked to the app update being installed. One other thing - some of the feedback messages detailing usage are definitely creepy.