Intervall

Intervall is a precise, design-forward interval timer for training sessions on iPhone and Apple Watch. Build custom workouts from intervals, repeats, and rests, then run them with a clean Swiss-inspired interface designed to stay legible during movement. Features: • Build custom interval workouts with sets, repeats, and rest periods • Save workouts and return to them anytime • Run workouts on iPhone with large, readable timer controls • Mirror the session on Apple Watch • Control play, pause, and skipping from your watch • View live heart rate during workouts when Health access is enabled • Minimal, distraction-free visual design Intervall is ideal for HIIT, circuits, mobility work, cardio intervals, strength blocks, and any workout that benefits from a structured timer. Health & Apple Watch: Intervall can read heart rate during workouts to display it on the timer interface. Health data is used only to support the workout experience.