Loop Timer - HIIT
YOSHIYUKI UEMATSU Health & Fitness iPhoneiPadiPod touchApple Watch
Loop Timer - HIIT is a free Health & Fitness app for iPhone and iPad by YOSHIYUKI UEMATSU. Requires iOS 17.0. Updated October 9, 2026.
- Price
- Free
- on the App Store
- Size
- 3 MB
- Age 4+
- Updated
- Oct 9
- 2026 · v1.4
Screenshots
About Loop Timer - HIIT
A simple interval timer that loops work and rest. Works with Apple Watch and the Dynamic Island. Set your times, tap start, and it loops automatically — for Tabata, HIIT, circuit training, stretching, or timing sets at the gym. ■ Always visible in the Dynamic Island and on the Lock Screen See the remaining time and current phase even while using other apps. The timer keeps running with the screen locked and alerts you with sound and vibration. ■ Apple Watch, right on your wrist Start, pause and skip from your Apple Watch while your iPhone stays in your bag. Phases are signalled by haptics. Both devices stay in sync and show the same remaining time. Live heart rate appears on the Watch, the iPhone and the Dynamic Island. ■ Apple Health Sessions are saved as HIIT workouts. With Apple Watch, heart rate and calories are recorded too. Review your history in the app: duration, energy, average and maximum heart rate. ■ Three counter styles • Digits — just a big number • Ring — the remaining time shrinks clockwise • Bars — a bar chart you can read at a glance Switch styles while running. Landscape is supported. ■ Sounds you can choose Three volume levels and three sounds (beep, chime, wood). Preview each one with a tap. ■ Train to a beat Set 40–240 BPM and choose 2, 3, 4 or 5 beats per bar. The first beat is accented to help you keep pace. Pick click, wood, cowbell or beep. By default it plays only during work. ■ Fine control Adjust times in steps of 1, 5, 10 or 30 seconds — 23 seconds is no problem. ■ Two looks, nine languages Choose the gray or pastel theme. Available in English, Japanese, Simplified and Traditional Chinese, Korean, Spanish, German, French and Portuguese. ■ Ready-made presets • Tabata 20s/10s × 8 rounds • HIIT 30s/30s × 10 rounds • 4020 40s/20s × 8 rounds × 2 sets • EMOM 50s/10s × 10 rounds ■ Free and unlocked The free version runs all four presets, lets you switch counter styles and shows the Dynamic Island. A one-time purchase (no subscription) unlocks: • Changing every duration • Saving your own named presets • Volume and sound choice • Apple Watch app with heart rate • Apple Health recording and workout history • Metronome rhythm (BPM, beats, sound)
What’s new
Version 1.4 · Updated October 9, 2026
■ Rhythm (paid) Set a tempo (40–240 BPM) and a time signature (2–5 beats) and play it during work. The first beat is accented, and you can pick click, wood, cowbell or beep. Preview it right in Settings.
App privacy
The developer, YOSHIYUKI UEMATSU, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Loop Timer - HIIT
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Loop Timer - HIIT | – | Free | October 9, 2026 | |
| Rounds Coach: Interval Timer | 5.0 / 5 (3) | Free | Oct 13, 2026 | Compare |
| Tabata Timer by fit.how | – | Free | Aug 10, 2026 | Compare |
| Justfit: Boxing Interval Timer | 5.0 / 5 (1) | Free | Oct 11, 2026 | Compare |
| Interval Timer ~ HIIT & Tabata | – | Free | May 6, 2026 | Compare |
| 井上レディースクリニック | – | Free | Sep 12, 2025 | Compare |
| Tabata Timer: HIIT Intervals | 4.0 / 5 (4) | Free | Sep 20, 2026 | Compare |
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