Yes, O-Genius OD20 OBDII 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.
O-Genius OD20 OBDII is free.
To get estimated revenue of O-Genius OD20 OBDII app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.