Do not buy this
This app does not work (no sound)
TrumpetTool is not free (it costs 7.90), however it doesn't contain in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
The price of TrumpetTool is 7.90.
To get estimated revenue of TrumpetTool app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
This app does not work (no sound)