For many families, one of the worst parts of the holiday season is fast approaching: the drive to Grandma’s house. (Or Aunt Cathy’s or your old college roommate’s, whatever floats your boat.) Enter RoadNinja, which tracks your location, lets you know the price of gas at upcoming stations, and points you to restaurants, hotels, shops, attractions and — this is important — pharmacies — at the next exit. That way, you have some idea of whether it’s worth changing lanes to get there. The app also lets you know what’s at exits in the opposite direction, in case you think there’s cheaper gas on the other side of the freeway. As the old song notes, from Atlantic to Pacific, gee, the traffic is terrific this time of year. It’s not a bad idea to enlist the help of ninjas to get you through that road trip.
Free, for iOS and Android devices.