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