Runkeeper is a mobile application designed to help users track their running and fitness activities. It uses GPS technology to measure distance, pace, and time, allowing users to monitor their progress over time. The app also offers features like goal setting, training plans, and audio cues to enhance the running experience. In addition to tracking runs, Runkeeper allows users to log other activities such as walking, cycling, and hiking. The app provides a social platform where users can connect with friends, share achievements, and participate in challenges, fostering a sense of community among fitness enthusiasts.