An enhanced spirit level for your camper van to tell you just how much you need to chock each wheel for the nirvana of a level van. Multiple profiles can be set up and calibrated so the android device can sit at any angle, and you can add your own vehicle to the database of popular vans. Will work with any 4 wheeled vehicle ever made. You need to click "Manage profiles > Manage vans". Then enter the details of your vehicle and click "Save as new van".

To calibrate a profile, park the vehicle somewhere flat. Fix the mobile device where you want to use it in your vehicle, click "Manage profiles > Calibrate this profile now! > Save profile" and you are done.