幼儿园游戏-青蛙过河 is not free (it costs 1.99), however it doesn't contain in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
The price of 幼儿园游戏-青蛙过河 is 1.99.
To get estimated revenue of 幼儿园游戏-青蛙过河 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.