5 stars: Handy app to see the status of your cars hybrid system. The ball to help you maximise your efficiency has to be taken with a pinch of salt as it can't see the road ahead & sometimes its better to coast than to try and save and reuse the energy.
4 stars: Great app and has been really useful getting used to driving my first hybrid car. Only one issue so far - I utilse mpg for fuel consumption (UK) and whilst the High Precision Fuel Chart correctly shows the instantaneous value at maximum mpg (=low consumption) when lifting off the throttle, as it should, it colours the instantaneous bars in red suggesting worst BSFC when it should be shown in cyan or white.
4 stars: This app is amazing for extending the life of your Prius battery by kicking on the fan when it gets too hot. Only cons are the mpg measurement is inaccurate for my car, and the setting sometimes change on their own. Other than that the app is amazing.
3 stars: Over the last couple of months the problems with cheap OBD-BT adapters seem to have increased, especially in the initialization phase. But if this phase could be finished successfully (may need 10 tries for my BT adapter), you get a very solid monitor for every hybrid car relevant information (I use a Yaris).
3 stars: I hate that it doesn't allow changing settings when car is in motion. I'm the passenger. I'd like to help my wife set the display correctly. Maybe you should release a special version for married couples, then you'd get m...