RevelLevel is a leveling app for the Winnebago Revel, and all 144 inch wheelbase Mercedes Sprinter vans and RVs. This app shows how much lower three tires on your van are than the highest tire, the reference tire. These values can be used for re-parking or for choosing leveling block heights. Leveling biases can also be entered into the app, so you can make the sink drain work better or ensure your head is higher than your feet when sleeping. Sounds can be used to level your van with this…