"This app helps you leveling your caravan or any other 3-wheel vehicle. The first version was created back in 2012 by eland apps and is being used by hundred thousands of camping enthusiasts all over the world!
The app shows the amount of centimeters or inches each wheel has to rise, taking the wheelbase and the wheel width into account (values for wheelbase and wheel width can be set according to your vehicle's specifications). The app can also show how to position your leveler blocks for best result!
Other features are added as well : just have a look!
The app can be calibrated to be used on various (uneven) surfaces, like the floor, a chair, a table or any other surface, even if this surface is not flat*!
*you need to calibrate the app before using it
*note that when you put your phone on a flat surface, without calibrating, the app will probably show incorrect results as the back of your phone is probably not flat because of - for instance - the camera.
This app is available in both a free version with ads and a paid PRO version without ads."