Runkeeper is a mobile app designed for tracking running, walking, cycling, and other distance-based activities. Users can monitor their performance and progress by recording their workouts, setting goals, and following training plans. The app provides GPS tracking, audio cues, and statistics on pace, distance, and calories burned. Additionally, it allows users to share their activities with friends and participate in virtual challenges. A subscription to Runkeeper may offer features such as personalized coaching plans, advanced insights, live tracking, and ad-free experience.