Hipmunk is an app that is fun to use and that is beneficial if you are traveling. You can search for everything from car rentals to flights for the best rates possible. There is an option to combine different services, such as a car rental and a hotel room. If you bundle services, then you can often find better rates using the app. Your information is saved while you search for other information online until you are ready to complete the booking. Once you have finalized your rentals and booking information, you receive a confirmation that can be printed or that can be stored on your device until it's needed.