X431 iDiag

I love being able to run OBD2 diagnostics with my iPhone. I have used multiple devices with my iPhone. This is by far the most comprehensive. It reads every sensor in my car and even allows the user to control certain functions of the ECU. The one major downfall is the user interface. I feel that it is very archaic. The user needs to manually select the car every time the app is opened. It also does not give the option to choose the make and model. The menu is organized by VIN. Once the vehicle is selected the functions of the app need to be selected through a series of menus rather than a convenient GUI. The pros defiantly outweigh the cons, but this app needs some improvement.

Steven Bussell about X431 iDiag US_Euro