Yes, 成人情侣运动生活记录本 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.
成人情侣运动生活记录本 is free.
To get estimated revenue of 成人情侣运动生活记录本 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.