WXYZ in Detroit has a few suggestions for apps that make family travel fun...

RoadNinja lets you plan your trip mile by mile with info about what can be found at each exit, from gas to treats.   

Field Trip runs in the background and will alert you to interesting historical sites and architecture along the way.  

Sky Map uses GPS data to show what's viewable in space from your campsite 

Postagram takes a photo snapped from your phone and turn into a post card delivered to someone's mailbox.  

What's your favorite travel app?  Leave it below