Yes, 鹿思闻鲜花 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.
鹿思闻鲜花 is free.
To get estimated revenue of 鹿思闻鲜花 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.