Overall, it's a good game with lots of choice, and the daily challenges are a nice addition. However, ads have gotten worse. I could deal with the short 5-7 second ads or skippable ones. But now with the long 30+ second (even got a minute one!), intrusive, flips your screen and takes up everything ads, it's just too much way, way too often. It really puts you off wanting to keep this app, seeing as how restricted you are to playing only the easy difficulties in offline mode. Uninstalling.