Perfect HIIT

Perfect simple HIIT timer app with Apple watch integration. No subscription. No cloud services required

A focused interval timer for high-intensity workouts. Set your work and rest periods, hit start, and train — no account required, no subscriptions, no ads.

BUILT FOR YOUR WORKOUT

• Create custom timers with adjustable work, rest, rounds, and break periods
• Comes with Tabata, 30/30 AMRAP, and EMOM presets ready to go
• Endless mode for open-ended sessions like AMRAP and EMOM
• Quick Start instantly repeats your last workout
• Full-screen timer with a clear circular gauge you can read mid-set

TRACK YOUR EFFORT

• Rate your effort during rest intervals to track fatigue over time
• Every session is scored based on work completed and perceived effort
• Review your workout history with detailed breakdowns

STAYS WITH YOU

• Live Activity keeps the timer visible on your Lock Screen and Dynamic Island
• Apple Watch companion app mirrors your workout in real time
• Pause, resume, or stop directly from your wrist
• Haptic feedback on your Watch for interval transitions and countdowns
• Audio and haptic cues so you never miss a transition

DESIGNED TO STAY OUT OF YOUR WAY

• No sign-up. No cloud. Your data stays on your device.
• Works offline. No internet needed, ever.
• Lightweight and fast — launches straight into your workouts.