Yes, 30歳から始めるお小遣い稼ぎ 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.
30歳から始めるお小遣い稼ぎ is free.
To get estimated revenue of 30歳から始めるお小遣い稼ぎ app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.