Yes, 盛泉养老 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.
盛泉养老 has several in-app purchases/subscriptions, the average in-app price is USD 89.99.
To get estimated revenue of 盛泉养老 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.