App in the Air flight tracker

With App in the Air, you can track your flights, receive real-time schedule and gate changes and access guides and maps to 9,000 airports worldwide. Quick links on the app assist you in hiring taxis and purchasing train tickets. (As of press time, train tickets are available only from London Heathrow Express and Moscow Aeroexpress.) The app also tracks miles flown for mileage programs.

The app is free on iTunes and Android, but most functions require in-app purchases. Tracking five flights costs $4.99; a calendar year of flight tracking costs $9.99, and unlimited flight tracking costs $29.99. Real-time flight updates require cell service.