Yes, 睡眠時間 記録 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.
睡眠時間 記録 is free.
To get estimated revenue of 睡眠時間 記録 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
3 out of 5
1 ratings in Japan