Amazing game. The levels are very fun and challenging. I never lose any progress or icons. There are not that many ads, which is good because games like this would probably have tons of ads. I recommend this game if you like challenges. 100% worth the money. Edit: well, where do I even start? Well, a little bit earlier I got into my account and wanted to play. Right when I got on, I noticed that...all my progress was gone!! My icons, progress, and everything were gone! Went to 5 star to 1 star.