I tend to eat a vegetarian diet, and one of the really hard things about traveling is finding good vegetarian food. The $3 app Where to Eat, for both iPhone and iPad, has been indispensable. The app lets you select from 45 different cuisines and 30 different food types, including vegan and vegetarian. When I'm traveling, I simply select one of those two categories, and then the app shows a list of nearby restaurants, the distance, and their location on a map. I can quickly get directions, as well as other information such as the phone number. I highly recommend this app. I also tried the free Urbanspoon but preferred Where to Eat.