HIIT Interval Timer & Tabata
Workout Timer & Stopwatch
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
Stop training blind. H11T reads your heart rate and runs the session around you — Smart Rest, AI Coach and Boxing IQ built in.
Stop training blind. Most interval timers just count down — they have no idea whether you're actually in the right zone, or whether your body's recovered before the next round starts. H11T is different: it's a smart conditioning coach that reads your heart rate and runs the session around you, not the other way round.
Train like a data-driven athlete instead of guessing:
• Smart Rest — your rest ends the moment your heart rate has recovered, not a second before or after. Fixed rest treats a warmed-up body and a gassed one exactly the same; Smart Rest doesn't (via Apple Watch).
• AI Coach — generate a complete workout tailored to you in seconds. Tell it what you've got and it builds the session.
• Pro Studio — design and save as many of your own protocols as you like, ready to fire up whenever you train.
• Boxing IQ — proper round-based boxing timer with a ring bell and gong, plus heart-rate-driven rounds and ready-made presets (Amateur, Pro, MMA, heavy bag).
And the essentials are still free and brilliantly simple:
• Build workouts your way — customise rounds, work and rest times, add a warm-up and cool-down.
• Apple Watch support — train from your wrist with haptic and sound cues.
• Apple Fitness integration — automatically log calories, heart rate and activity.
• Pro stopwatch — millisecond precision for runners and swimmers, ideal for intervals and time trials.
Perfect for HIIT and Tabata, fat-burning circuits, boxing and MMA conditioning, runners, swimmers, and anyone who's done with one-size-fits-all rest.
The free timer is the body. The premium tools are the brain. Stop guessing and start training smarter.
Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy - https://h11t.app/terms
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
H11T just got a whole lot smarter:
• AI Coach — get a full workout built around you in seconds.
• Smart Rest — rest ends the moment your heart rate has recovered, not when a fixed timer says so (via Apple Watch).
• Boxing IQ — round-based boxing timer with heart-rate-driven rounds, ring bell and presets (Amateur, Pro, MMA, heavy bag).
• Pro Studio — build and save as many of your own protocols as you like.
• A refreshed, cleaner look and a smoother training experience throughout.
Thanks for training with us — keep the feedback coming.
The developer, Pavel Ilin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- Purchases
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Pavel Ilin
- Size
- 30.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 13.3 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 11 more
- English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Monthly premium Access USD 3.99
- Annual premium subscription USD 11.99
- Annual premium subscription USD 17.99
- Weekly premium access USD 0.99
- Copyright
- © Pavel Ilin
