Yes, 搞笑臉舞——3D視頻 is free to download, however it contains in-app purchases or subscription offerings.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
搞笑臉舞——3D視頻 has several in-app purchases/subscriptions, the average in-app price is 33.20 H$.
To get estimated revenue of 搞笑臉舞——3D視頻 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.