Yes, 情志调理 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.
情志调理 has several in-app purchases/subscriptions, the average in-app price is $26.19.
To get estimated revenue of 情志调理 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.