I used to play it a lot, until a few days ago when it froze and I couldn't play anymore. Nothing helped. Stopping the app didn't seem to do anything. So I uninstalled it and reinstalled, but then lost all my progress :( I had all the badges and more than 3850 puzzles solved, reaching Botswana. My mistake was playing as a guest and not logging in to Facebook. Part of it was due to so many adds, after every puzzle. Unfortunately, I have to uninstall it.