#8 of 10 Best Cellphone Travel Apps of 2017 - TripCase is a travel app that simplifies the process of planning and managing a trip. This app is used to help organize more than 30 million trips a year and has been used by more than 110,000 travel companies. TripCase has even been integrated with more than 40 airlines. Flights, car rentals, and other details can all be managed with the app’s easy-to-use features. Users can simply sign up for an account, forward their trip information to the company, and download the TripCase app to an iPhone or Android to get quick access to all the app's features.