4 stars: Used with the OBD ELM327 iCar Vgate v4.0 Bluetooth LE adapter on my 2014 Dodge Challenger to enable backup camera, a procedure my Dodge dealer wanted $171 for. This app plus the iCar device via Amazon totaled $57. It worked first time. The UI is a bit clunky and confusing so make sure to play with it in Demo Connection mode a bit first.
4 stars: So far this programmer is definitely the best value I've found. Plenty of adaptations for the vehicle. Some instructional info was hard to find, but the tech support has been excellent.
2 stars: App constantly disconnects. The interface is good but it tells me it's lost connections over and over while trying to work
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