Yes, 头脑王者 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.
头脑王者 is free.
To get estimated revenue of 头脑王者 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
4 out of 5
1 ratings in Hong Kong SAR China