Cell phone camping apps.

I use RV Checklist. Its a customizable app that lists all the stuff that needs to be checked before leaving your campsite, and is also helpful for setting up camp. Good for motorhome, TT, Truck Camper, etc, very versatile.

The 4 Apps that I use the most is Copilot for GPS, Waze for traffic, Weatherbug for approaching storms, and Gas Buddy.

and
Accuweather https://itunes.apple.com/app/id300048137

I recommend Spyglass. It's a gps app that I use for offroad navigation, mark locations and waypoints. https://itunes.apple.com/app/id332639548

"Where am I?"---great when you need to call dish and tell them where you are. It gives address, zip, coordinates, etc.

DICK

TV Antenna helper FREE (Really helps find local OTA stations)
GasBuddy
Weatherbug

AllStays looks like its not free,My iPhone says its 9.99

Most all of the apps mentioned by other posters are excellent. "YELP" is also a good traveling app that can provide information on the different businesses that are near you that you may want to patronize.

CampWhere has not yet been mentioned. Between that, Allstays, and the website freecamping.net I can find pretty much anything I want.

Johnson bubble level comes in handy.