Intervals One – HIIT | Tabata

Intervals One – Your Interval Training Coach

The interval timer designed for real workouts. Crystal-clear voice guidance, effortless setup, and intelligent features that adapt to how you train.

No clutter. No complexity. Just smart interval training that helps you build better workouts and stay focused.

TWO MODES. INFINITE POSSIBILITIES.

Simple Mode:

Perfect for quick sessions. Set your timing for all exercises at once, hit start, and let the voice guidance coach you through every phase. Ideal for consistent HIIT, Tabata, circuits, or bodyweight training. Premium users can customize each exercise stage with specific movements, reps, and effort levels.

Advanced Mode:

Complete control. Customize every exercise with individual timings per round, choose specific movements from our exercise library, set rep targets or effort levels, and build structured training programs that match your goals.

WHY ATHLETES CHOOSE INTERVALS ONE

Clear Voice Coaching:

Professional voiceovers - announce every phase, exercise, and transition. Train eyes-free with clear, motivating guidance that keeps you in the zone.

Intuitive Design:

Create workouts in seconds with our distraction-free interface. No complicated builders or endless menus - just fast, focused setup that gets you moving.

Works Everywhere:

Train offline, indoors, or outdoors. No internet required once downloaded. Works perfectly with AirPods, speakers, or silent mode with haptics.

PERFECT FOR

- HIIT & Tabata intervals
- AMRAP (As Many Reps As Possible)
- Circuit training
- Bodyweight workouts
- Strength & conditioning
- Cardio intervals
- Functional fitness
- CrossFit-style training

SMART COACHING FEATURES

- Next exercise cues so you're always prepared
- Halfway alerts to pace yourself
- Round completion announcements
- Customizable countdown timers
- Haptic feedback for silent training
- Adjustable audio cues
- Round recovery periods

PRIVACY FIRST

Your workout data stays yours. No account required. Optional iCloud sync keeps your workouts and history private and secure across your devices.

START FREE

Get unlimited basic interval workouts with full timing customization and premium voice guidance - completely free. Upgrade to Premium when you're ready for exercise selection, rep tracking, and advanced per-round customization.

Download Intervals One and experience smarter interval training today.