Terminal Maps: GateGuru (free; Android, iPhone) and iFly
Airport Guide (free; Android, iPhone) provide detailed
maps with passenger-submitted checkpoint wait times, user ratings, and deals
for hundreds of airports worldwide.
Flight Updates: FlightBoard ($3.99; Android, iPhone, iPad) lists all arrivals and departures for
more than 4,000 airports around the globe; data is refreshed every five minutes.
Airport Guides: Airports are launching their own apps. Frankfurt’s
FRA (pictured; free; Android, iPhone, iPad) gives you terminal maps and flight updates;
Amsterdam’s Schiphol app (free; Android, iPhone) has a guide to the extensive shopping options.
Virtual Travel Aide: If you have an itinerary with several
connections, GoHow Airport (free; iPhone, iPad) lets you create a personalized profile with the
information you need on each leg of your journey.