The app shows the amount of centimeters each wheel has to rise, taking the wheel base and the wheel width into account. Values for wheelbase and wheel widht can be set according to your vehicle's measures.

The app can be calibrated to be used on various locations, like the dashboard, the floor, a chair, a table or any other location, even if this surface is not flat*!

*you need to calibrate the App before using it on a surface that is not flat
*note that when you put your phone on a flat surface, without calibrating, the app will show incorrect results.

First time users, please read the instructions (also available in the setup menu under "i"):

Before first time use take care of the following:

By default the app is not calibrated. In order to do so, please follow following intructions before usage:

1. Place your camper in a horizontal position
2. Put your phone on the location you want to use: the dashboard, a chair, the floor or any other location
3. Click Calibrate

Now that location is set to being horizontal (even if your phone is put on a location that is not horizontal, like the dashboard).

Note: calibration is a correction added to the app only, there are no changes made to your phone!

What’s New

Version 2.1.3

- New wheel base and track width values for the Volkswagen T1, T2 camper

Ratings and Reviews

4.6 out of 5
30 Ratings
30 Ratings
HercJerk ,

So far so bad.

Read the instructions and calibrated it several times. Then if I check level without moving the RV it tells me to raise the right front wheel four inches. I’m already level.

Jeff Treiber ,

Doesn't Work, no support

Nice idea, but app will not allow critical RV spec set up. There is no support available.


Ralf Andrae
24.9 MB
Requires iOS 8.2 or later. Compatible with iPhone, iPad, and iPod touch.
English, Dutch, Finnish, French, German, Italian, Norwegian, Spanish, Swedish
Age Rating
Rated 4+
© Ralf Andrae


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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