Yes, 史上最牛的解密游戏3:最坑爹的解谜益智游戏 is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
史上最牛的解密游戏3:最坑爹的解谜益智游戏 is free.
To get estimated revenue of 史上最牛的解密游戏3:最坑爹的解谜益智游戏 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.