Yes, 调音器-GuitarTuner调音器吉他调音器节拍器&调音器 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.
调音器-GuitarTuner调音器吉他调音器节拍器&调音器 is free.
To get estimated revenue of 调音器-GuitarTuner调音器吉他调音器节拍器&调音器 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.