Appy Camper

Finding an RV Park can be difficult. Finding one with availability, even more so. Appy Camper solves that problem in one convenient place. you can discover RV parks in your desired area, and message them directly through the app to find availability and offered amenities. Finding a place to enjoy your trip has never been easier.

Also, Appy Camper users can get a subscription to use the app.
Here is the app EULA link :
http://appycamper.betaplanets.com/terms-and-conditions/