Profitable but Incredibly Frustrating When the app functions as it is supposed to, it is very profitable and easy to use. It is when you reach the times when the app inexplicably fails to respond or doesn't work properly that make you want to pull your own hair out. In my personal experiences, I have had multiple instances of full bars of 4G reception and the app will refuse to let me accept an offer and will instead register it as missed and my stats as a driver will be penalized.