Turn your phone into a fitness tracker with Polar Beat, the ultimate free fitness, running, and workout app. Train with real-time voice guidance, use GPS to track your route and distance, and share your achievements with your friends. PLAN, TRAIN, ANALYZE, SHARE. All in one place. Unlock the full Polar Beat experience with a Polar heart rate sensor. DOWNLOAD Polar Beat now and turn your phone into a personal trainer. Note: Continuous use of GPS can dramatically decrease your phones battery life.