Lose Yourself Without Getting Lost. This handy application presents you several self-guided city walks, featuring the best of the city. This app gives you the option to turn off the GPS tracking in the background to prolong the battery life.
The Mobile Passport app speeds you through U.S. Customs when entering the USA at 1 cruise port and 24 airports Officially authorized by U.S. Customs and Border Protection, MOBILE PASSPORT allows U.S. and Canadian passport holders (on B1 or B2 visas) to submit their passport control and customs declaration information via their iPhone or iPad and bypass the regular line to enter the United States. This app effectively replaces the traditional blue-and-white paper declaration form required of all travelers entering the U.S. by air or sea. BRING YOUR PASSPORT
Rome2rio is a comprehensive global trip planner that helps you get from a to b worldwide. You can enter any town, address or landmark as your destination and Rome2rio will instantly display flight, train, bus, ferry and driving options with estimated travel times and fares. -Gilbert Ott, Cond Nast Traveller
SuperShuttle is the best way to get to and from the airport. Easily book a shared-ride, non-stop ride, black car, or an SUV. Check out http://www.supershuttle.com/About/FAQNote: Continued use of GPS running in the background can dramatically decrease battery life.