Yes, Naturefulness Relaxing Sounds 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.
Naturefulness Relaxing Sounds has several in-app purchases/subscriptions, the average in-app price is CHF 0.50.
To get estimated revenue of Naturefulness Relaxing Sounds app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.