Yes, 一带一路智慧云平台 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.
一带一路智慧云平台 is free.
To get estimated revenue of 一带一路智慧云平台 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.