DC Trails-Hop On Hop Off Tours is an Android application developed by United Bus Technology Inc. This free app is a perfect companion and tour guide for those who want to explore the nation's capital. With nearly 80 sites and points of interest on your tour, the app provides a digital brochure to help you plan your personal "must-see's."

The app helps you find new places to explore and save and plot your favorite attractions to create your own personalized map of the city. Using GPS, it helps you find the nearest DC Trails bus stop and the estimated time of arrival of the next tour bus, allowing you to cover more ground and see as much as possible. Spend less time worrying about what to do next and more time enjoying what DC has to offer. The app tells you exactly where to hop back on the tour after you've hopped off.