GateGuru helps those waiting for flights by providing information on airport food and retail outlets. (Free; iOS and Android)
Poynt can show you around a town you don’t know. This handy app pinpoints your location and then finds nearby retailers and restaurants. (Free; all smartphones)
AroundMe is similar to Poynt, except without user reviews. It lists nearby shops, restaurants, banks, hospitals, hotels, and gas stations. (Free; iOS and Android)
HearPlanet can provide an audio tour of local tourist sights. It provides text and audio files about landmarks while you pass by on foot or by cab. ($4 for iOS, $3 for Android)
World Customs & Cultures offers overseas travelers “a quick briefing on local mores.” Subjects covered include greetings, common gestures, laws, taboos, and notions of personal space. (Free; iOS only)
Source: The New York Times