Ntrvl

Ntrvl is an interval timer for iPhone and Apple Watch. Set up your workout in seconds and go. Haptic feedback, audio cues, and color changes keep you locked in without needing to look at your phone. Whether it's HIIT, circuit training, Tabata, or a simple work/rest routine, Ntrvl handles the timing so you can handle the work.

Every workout can be tracked on Apple Watch and automatically saved to Apple Health, including active calories, heart rate, and workout duration.

Start fast with built-in presets for Tabata, HIIT, EMOM, and Nordic 4x4 or build your own from scratch. Save up to 10 custom workouts and reorder them however you like so your go-to sessions are always one tap away.

- Customizable work and rest intervals
- Built-in presets: Tabata, Nordic 4x4, HIIT, EMOM
- Save up to 10 custom workouts
- Apple Watch companion with full workout controls
- Workout tracking with automatic Apple Health sync
- Drag-to-set time controls
- Haptic, audio, and visual interval cues
- Background audio support (keep your music playing)
- Clean, glanceable interface