Android 5.1+ is not the problem. This app works quite well with lollipop. Here is the issue: Requirements: Android 4.4+ Android Tablet with 7" or higher screen size Personally, I don't like it when developers make a decision for me as to what size screen is too big or too small and lock out installs, but that is their prerogative. That said, I've used the app on a Droid MAXX 5" screen, and I wouldn't do it unless I was in a pinch.
