Yes, 100年健脳手帳 - 食事・運動 is free to download, however it contains in-app purchases or subscription offerings.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
100年健脳手帳 - 食事・運動 has several in-app purchases/subscriptions, the average in-app price is €3.49.
To get estimated revenue of 100年健脳手帳 - 食事・運動 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.