I know for years already as a Stick Sports Online Games and find the app version of Stick Sports Tennis class. Unfortunately, I find it unfortunate that one needs better tennis racquet for the stronger opponents and these are available as in-app purchase from 0.79 to 24 EUR for the Supidupi Bat ... I bought me a better bat ( for 1.59) and thus come better with the stronger opponents clearly. Actually, I would give it 5 stars, but because of the in-app purchases there's a point deduction.