Probably the biggest name in restaurant finding in the digital age, Yelp is still going strong with its iPhone app (free). In it, you’ll be able to find restaurants based on your location, preferences around food, price and atmosphere. You can also contribute your own reviews, browse lists created by Yelp and by users, and get basic information like hours, menu and directions. An Apple Watch app puts all of Yelp’s power and knowledge on your wrist. An essential app.