Running Intervals are a great way to train and improve your conditioning, speed and technique. We use your device's accelerometer and GPS to automatically detect when you are running and when you are resting. We track each interval so that you can clearly see your training data. Features - Track your intervals - Save your history - Apple Watch app which uses the Always On display - Health app and Fitness integration - Light and Dark mode Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/