Plenty of people use their smartphone to keep track of their interval training. Intervals Pro lets you do that and more. It comes with everything you need for HIIT, strength training, running, stretching, MMA, and boxing workouts. It has multiple workout templates and training programs. This app gives you complete control over all your intervals. It also features spoken interval names and alerts.
Intervals Pro is compatible with iPhone, iPad, and Apple Watch devices. You can customize name, duration, and color each interval as well as voice prompts to guide you through your workout. It supports time/distance based intervals. You can track heart rate/calories/distance, track routes, and control your music on your Apple Watch. You also get haptic alerts to give you heads up when an interval is ending.where to get it]