Played the game happily daily for nearly nine months. It was my go-to game whenever I had a minute. I decided to follow the periodic prompts and login using Google to save my progress. Next time I finished a world however this just started a perpetual loop between the screen saying I'd completed the world and one saying we're backing up your progress. After a couple of days with just that loop there was no option but to uninstall the app. Beyond annoying!