In simple words, this Accelerometer app measures the forces that the occupants are subject to inside of a car. Based on the internal sensor that most of the Android devices have, it shows with the Green bubble to where and how much your body is being pushed in two axis, longitudinal and lateral.
Download the setup package of Car Accelerometer PRO 1.3 free of charge and take a look at users' reviews on Droid Informer. The app works flawlessly on Android 2.1 and above. This application is completely secure for downloading. The tool has been originally designed by Rodrigo Merlo and it is included in the Sports category.