Intervals is a workout timer designed for various routines like Tabata, HIIT, and custom interval workouts. With this app, users can efficiently create and save personalized interval workouts, including Tabata and HIIT routines. The app offers convenient built-in presets to kickstart workouts and seamlessly integrates with Apple's HealthKit for comprehensive fitness tracking.

For Apple Watch users, Intervals provides a fully-featured app that not only tracks workouts but also contributes to Activity Rings. Users can monitor their heart rate and calorie burn in real-time during workouts, enhancing their fitness experience through detailed insights.

Tabata, a high-intensity interval training regimen, is explained within the app, highlighting its effectiveness through intense exercise intervals and short rest periods. Intervals simplifies workout management and optimizes fitness tracking, making it a valuable tool for users seeking efficient and effective workout routines.