6. TripCase
TripCase is your ultimate trip manager app, where you can link all of your flights, hotel bookings, car rentals, and attraction tickets all in one spot. Even better, it lets you know if any delays, gate changes, or surprise cancellations happen, and saves all of your receipts.

It also lets you know the nitty gritty details of your trip, like gate numbers, total travel times, and indoor airport maps. If you're a Type A traveler, this app will be your holy grail.