# HIIT Timer / Interval Timer — HIIT Interval Training Timer

> Customizable interval timer for high-intensity training. (iPhone/iPad app by FugaPiyo Inc..)

- Source: https://appshunter.io/ios/app/hiit-timer-interval-timer/id1610842683 (this page in markdown: same URL + `.md`)
- Developer: [FugaPiyo Inc.](https://appshunter.io/developer/1497887610)
- Category: Sports, Health & Fitness
- Price: Free
- Rating: 4.90/5 from 14 App Store ratings
- Age rating: 4+
- Requires: iOS 26.0 · 12 MB
- Languages: American English, Japanese
- Released: 2022-02-20
- Data updated: 2026-08-12
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/hiit-timer-interval-timer/id1610842683/reviews.md

## What is HIIT Timer / Interval Timer?

It's a timer app suitable for HIIT training.
All features are completely free to use.

Features:
- Quick start-up and comfortable operability. Create unlimited timers.
- Freely set warm-up, ready, workout, interval, cool-down minutes / seconds, and set counts.
- Customize colors, texts, background notifications, sounds, speeches, vibrations, screen flashes and icon badges.
- Dark mode
- All free

URL scheme:
hiittimer://

---

* High-intensity interval training

High-intensity interval training (HIIT) is a training protocol alternating short periods of intense or explosive anaerobic exercise with brief recovery periods until the point of exhaustion, which thereby relies on "the anaerobic energy releasing system almost maximally."

* Procedure

HIIT exercise sessions generally consist of a warm up period followed by repetitions of high-intensity exercises separated by medium intensity exercises for recovery, then a cool-down period. The high-intensity exercise should be done at near maximum intensity. The medium exercise should be about 50% intensity. The number of repetitions and length of each depends on the exercise, but maybe as little as three repetitions with just 20 seconds of intense exercise. The specific exercises performed during the high-intensity portions vary. Most of the research on HIIT has been done using a cycling ergometer, but other exercises like a rowing ergometer, running, stair climbing and uphill walking can also be effective.
There is no specific formula for HIIT. Depending on one's level of cardiovascular development, the moderate-level intensity can be as slow as walking. A common formula involves a 2:1 ratio of work to recovery periods, for example, 30–40 seconds of hard sprinting alternated with 15–20 seconds of jogging or walking, repeated to failure.

The entire HIIT session may last between four and thirty minutes, meaning that it is considered to be an excellent way to maximize a workout limited by time constraints. Use of a clock or timer is recommended to keep accurate times, the number of rounds, and intensity.

Quoted from:
https://en.wikipedia.org/wiki/High-intensity_interval_training

## Key features

- Unlimited timer creation
- Customizable intervals (warm-up, workout, cool-down)
- Adjustable counts
- Color and sound customization
- Dark mode support
- Background notifications


## Frequently asked questions about HIIT Timer / Interval Timer

### What is HIIT Timer used for?

HIIT Timer is a specialized application designed to facilitate high-intensity interval training (HIIT) workouts. It allows users to create and manage custom interval timers for various phases of their exercise routine, including warm-up, workout, and cool-down periods.

### Can I create custom workout routines with HIIT Timer?

Yes, you can freely set the duration for warm-up, ready, workout, interval, and cool-down phases. You can also set the number of repetitions for each interval, offering a high degree of customization for your training sessions.

### Does HIIT Timer have ads?

Yes, HIIT Timer contains advertisements. As it is a free application, ads are displayed to support its development and maintenance.

### What devices is HIIT Timer compatible with?

HIIT Timer is compatible with both iPhone and iPad devices, running on iOS.

### How often is HIIT Timer updated?

The latest version of HIIT Timer is 1.0.9, and it was last updated on October 30, 2025. This indicates regular maintenance and potential feature additions.

### What is the age rating for HIIT Timer?

HIIT Timer has an age rating of 4+, making it suitable for a wide range of users.

### What makes HIIT Timer stand out from other interval timers?

HIIT Timer offers a completely free experience with unlimited timer creation and extensive customization options for sounds, colors, and notifications. Its user-friendly interface ensures quick start-up and comfortable operability.

### Can I use HIIT Timer offline?

The provided description does not specify offline functionality. However, timer applications generally function without an internet connection once set up.

## Version history (last 5 releases)

### 1.0.9 — 2025-10-30

- Bug fixes and stability improvements

### 1.0.8 — 2024-02-11

- Bug fixes and stability improvements

### 1.0.7 — 2024-02-07

- Bug fixes and stability improvements

### 1.0.6 — 2023-02-23

- Bug fixes and stability improvements

### 1.0.5 — 2022-12-11

- Bug fixes and stability improvements

## Apps similar to HIIT Timer / Interval Timer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Timer for Workouts - Repeat](https://appshunter.io/ios/app/timer-for-workouts-repeat/id481226913) | 4.6 (1,388) | Free | Sports |
| [Simple Interval Timer](https://appshunter.io/ios/app/simple-interval-timer/id458334253) | 4.9 (5,318) | Free | Sports |
| [Boxing Timer Interval](https://appshunter.io/ios/app/boxing-timer-interval/id1577332517) | 4.9 (37) | Free | Sports |
| [Boxing Timer \| Boxing Workout](https://appshunter.io/ios/app/boxing-timer-boxing-workout/id6502455195) | 5.0 (2) | Free | Sports |
| [HIIT Workout: Interval Timer](https://appshunter.io/ios/app/hiit-workout-interval-timer/id1664899160) | 4.8 (8) | Free | Sports |
| [Captime - Timer HIIT e WOD](https://appshunter.io/ios/app/captime-timer-hiit-e-wod/id1369288585) | 4.6 (64) | Free | Sports |

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All apps by FugaPiyo Inc.: https://appshunter.io/developer/1497887610

## Related topics

[free hiit timers for gym goers](https://appshunter.io/ios/topics/free-hiit-timers-for-gym-goers) · [hiit timer free](https://appshunter.io/ios/topics/hiit-timer-free)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-12.*