Circuit Timer: Interval & HIIT
Lawman Services, LLC Health & Fitness iPhoneiPadiPod touchApple Watch
Circuit Timer: Interval & HIIT is a free Health & Fitness app for iPhone and iPad by Lawman Services, LLC. Requires iOS 26.0. Updated October 5, 2026.
- Price
- Free
- on the App Store
- Size
- 7 MB
- Age 4+
- Updated
- Oct 5
- 2026 · v1.1.1
Screenshots
About Circuit Timer: Interval & HIIT
Build your own interval circuits for HIIT, Tabata, boxing rounds, EMOM and circuit training, then run them with precise timing, voice announcements, sounds and haptics. CREATE YOUR PERFECT WORKOUT Design circuits with unlimited intervals, each with its own name, duration and alarm sound. Repeat single intervals or the whole circuit, by count or for a set time. Choose from 24 alarm sounds, a spoken countdown, or both. STAY IN THE ZONE A full-screen player with a progress ring, countdown and interval timeline keeps you focused. The final seconds of each interval pulse so you're ready for what's next, and voice announcements call out each interval by name, so you never have to look at your screen. TRAIN WITH YOUR MUSIC Interval sounds play over your music instead of pausing it. The current interval and countdown stay on your Lock Screen and in the Dynamic Island, and cues keep working through phone calls. Start any circuit hands-free with Siri. APPLE WATCH Run circuits from your wrist with live heart rate, heart rate zones, active calories and a tap at every interval change. Starting a workout on your iPhone? Your watch follows along with the same taps and your heart rate. A Smart Stack card keeps the current interval in view, even with the app closed. TRACK YOUR PROGRESS See your workout history with streaks, completion stats and total training time. Save workouts to Apple Health as High Intensity Interval Training. FREE TO START • 1 circuit with every feature: alarms, haptics, voice and history CORE UPGRADE • Unlimited circuits • iCloud sync across your devices • Apple Health PRO UPGRADE • Everything in Core • Apple Watch app Both upgrades are one-time purchases. No subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What’s new
Version 1.1.1 · Updated October 5, 2026
• Small improvements and fixes.
App privacy
The developer, Lawman Services, LLC, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Circuit Timer: Interval & HIIT
Looking for apps like Circuit Timer: Interval & HIIT? Here are 6 similar apps on the App Store. The highest rated is ChainFlow: Interval Timer (5.0/5), and all 6 are free to download.
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Gym Circuit Timer
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ChainFlow: Interval Timer
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Custom Interval Workout Timer
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Gym Timer: Workout Interval
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PeakTimer
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Gym Timer Docali
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Circuit Timer: Interval & HIIT | – | Free | October 5, 2026 | |
| Gym Circuit Timer | – | Free | Mar 11, 2026 | Compare |
| ChainFlow: Interval Timer | 5.0 / 5 (1) | Free | Sep 2, 2026 | Compare |
| Custom Interval Workout Timer | – | Free | Oct 10, 2026 | Compare |
| Gym Timer: Workout Interval | – | Free | Apr 10, 2026 | Compare |
| PeakTimer | – | Free | Jun 18, 2026 | Compare |
| Gym Timer Docali | 5.0 / 5 (2) | Free | Sep 11, 2026 | Compare |