GateGuru, Airport Info & Flight Status is an app that lets you add a flight and receive full flight tracking, wait times, and airport information. The app makes it easy to know everything about your airport by providing you with amenities, tips, maps, status, weather, and more. GateGuru has been updated, adding Avis rental car bookings to let you book a car with just two quick taps and huge discounts of up to 30%.