NYT's Bob Tedechi has nice things to say about iFly Pro and GateGuru (for iOS and Android) as well as Airport Transit Guide (iOS only).
Next time I might be able to save some steps, and possibly some money, by using an airport guide app. In addition to helping find food vendors and shops that may not rip you off, the apps can help you avoid overpaying for ground transportation once you reach your destination.
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