Yes, 恋愛に使える心理学〜相手の心をつかむ心理学のワザ 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.
恋愛に使える心理学〜相手の心をつかむ心理学のワザ is free.
To get estimated revenue of 恋愛に使える心理学〜相手の心をつかむ心理学のワザ app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.