Exert helps you to keep track of your training routine on your Apple Watch. It makes your training data easily accessible on your wrist by using your tracked workouts from Apple Health. - Stay on track. Exert helps you keep track of your frequency, duration and intensity of your training. - Get feedback on your effort. Your workout heart rate is analysed to estimate your workout intensity using heart rate zone analysis. - No iPhone needed. You can use this app without needing your phone. Great when you workout without your phone nearby. ... more