RunKeeper is a mobile application designed to help users track their running, walking, and cycling 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, workout history, and social sharing, making it easier for users to stay motivated. In addition to tracking workouts, RunKeeper provides personalized training plans tailored to different fitness levels and goals. Users can access audio cues during their activities, receive reminders, and connect with friends for added encouragement. Overall, it serves as a comprehensive tool for fitness enthusiasts.