The Scosche myTREK App is a health and fitness application designed to work exclusively with the Scosche myTREK Wireless Pulse Monitor. This award-winning app displays real-time pulse, target training zones, calories burned, distance/speed of run, total workout time, altitude gain and provides voice prompts during the workout. With the Scosche myTREK App, you can manage your current and past training sessions to get the most out of your workouts.- PULSEAccurate pulse monitoring lets you assess the intensity of your workout- TRAINING ZONE5 color coded training zones allow you to quickly identify when you are in the desired intensity level- CALORIES BURNEDObserve the amount of calories burned to maintain a healthy body composition and work toward your goals- DISTANCE/SPEEDTrack your actual distance and speed using the phone