Yes, 이젠 영어 첫걸음 무작정 따라하기와 함께 하면서문법 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.
이젠 영어 첫걸음 무작정 따라하기와 함께 하면서문법 is free.
To get estimated revenue of 이젠 영어 첫걸음 무작정 따라하기와 함께 하면서문법 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.