# HIIT Interval Timer — High Intensity Training

> Customizable interval timer for high-intensity training with background operation. (iPhone/iPad app by Thang Nguyen.)

- Source: https://appshunter.io/ios/app/hiit-interval-timer/id980471893 (this page in markdown: same URL + `.md`)
- Developer: [Thang Nguyen](https://appshunter.io/developer/921360262)
- Category: Health & Fitness, Utilities
- Price: Free with in-app purchases
- Rating: 4.20/5 from 102 App Store ratings · 19 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 10 MB
- Languages: American English
- Released: 2015-07-23
- Data updated: 2026-08-16
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/hiit-interval-timer/id980471893/reviews.md

## What is HIIT Interval Timer?

Run in foreground, background and screen locked, the HIIT app allows you to specify an overall time as well as program High/Low intensity interval and rest time between cycles. 

+ Flexible and Advanced Timer
+ Clean, simple and easy to use (There is no learning curve here)
+ Create your own timers with some taps
+ Create fully customized timers with a complex of cycles and sets,
+ Run in the background, foreground, screen locked
+ Color, Voice and Sound Navigations (Customizable)
+ Built in Music Player (in sync with iOS Music Player)
+ Multiple themes to select
+ Manage your timers and data of training (you can even delete unwanted timer or junk data)
+ Create your own alarms right in the app
+ Work on iPhone, iPad and iPod
+ And a lot more features will be added in over time.

How to use this app: There is no user manual here! -> Download it -> tap on play button -> you will see -> It’s super easy

## Key features

- Customizable interval and rest times
- Background and screen-locked operation
- Color, voice, and sound navigation
- Built-in music player
- Create and manage custom timers
- Multiple themes

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Upgrade | $4.99 | one-time |


## Recent user reviews (10 of 19)

All indexed reviews: https://appshunter.io/ios/app/hiit-interval-timer/id980471893/reviews.md

### 1/5 — No

*2023-01-18*

Nothing good here.

### 1/5 — Does not change time

*2020-03-15*

So I paid for the other version of the app and I keep trying to change to 2 min warm up and 2 min cool down and the app keeps going to 3:20 .
Also in the intervals it does not let me put the 20sec high 1 min low. So I did not like how it works

### 5/5 — 좋아요

*2018-10-14*

좋아요 감사합니다

### 1/5 — App won't open

*2018-08-15*

Tried to use several times; it goes to open then crashes.

### 2/5 — Don't buy it

*2018-07-24*

Free version works ok. "premium features" are mostly buggy and confusing. Id return it if I could

### 3/5 — It’s ok

*2018-06-05*

It’s ok

### 1/5 — App

*2017-12-17*

Can not get app to open it just shuts right down.

### 4/5 — Solid

*2017-06-10*

Solid routines.

### 3/5 — 괜찮습니다

*2016-10-20*

인터벌 하기엔 쓸만 합니다

### 4/5 — 인터벌 운동에 좋아요

*2016-09-07*

무료라서 한계는 있지만 충분히 쓸만해요

## Frequently asked questions about HIIT Interval Timer

### What is HIIT Interval Timer?

HIIT Interval Timer is a free app designed to help users structure their high-intensity interval training sessions. It allows for flexible customization of workout intervals, rest periods, and provides various navigation cues.

### Can HIIT Interval Timer run in the background?

Yes, HIIT Interval Timer is designed to run in the foreground, background, and even when the screen is locked, ensuring your workout is not interrupted.

### What kind of navigation does HIIT Interval Timer offer?

The app provides customizable color, voice, and sound navigations to guide users through their workout intervals and rest periods.

### Does HIIT Interval Timer support music?

Yes, it includes a built-in music player that can be synchronized with the iOS Music Player, allowing users to enjoy music during their training.

### How does HIIT Interval Timer handle customization?

Users can create their own timers with a complex of cycles and sets, offering a high degree of personalization for various training routines.

### What devices is HIIT Interval Timer compatible with?

HIIT Interval Timer is compatible with iPhone, iPad, and iPod devices.

### How often is HIIT Interval Timer updated?

The app was last updated on January 8, 2026, with version 7.3. Future updates are planned to add more features.

### What is the user rating for HIIT Interval Timer?

HIIT Interval Timer has a rating of 4.2 stars from 99 ratings, indicating generally positive user feedback.

## Version history (last 5 releases)

### 7.3 — 2026-01-08

We update minor changes

### 7.2.0 — 2023-12-28

We update minor changes

### 7.1.0 — 2022-12-21

We update minor changes

### 7.0 — 2021-10-01

We update the app to support iOS 15

### 6.6 — 2021-05-16

Fix minor issue

## Apps similar to HIIT Interval Timer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Interval Timer - Tabata Timer](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568) | 4.5 (19,032) | Free | Health & Fitness |
| [Interval Timer □ HIIT Timer](https://appshunter.io/ios/app/interval-timer-hiit-timer/id1124297113) | 4.8 (85,854) | Free | Health & Fitness |
| [Timer Plus - Workouts Timer](https://appshunter.io/ios/app/timer-plus-workouts-timer/id1279716547) | 4.8 (59,287) | Free | Health & Fitness |
| [Tabata Timer: Interval Timer.](https://appshunter.io/ios/app/tabata-timer-interval-timer/id1255964203) | 4.9 (9,173) | Free | Health & Fitness |
| [Interval Timer X Workout Timer](https://appshunter.io/ios/app/interval-timer-x-workout-timer/id1448144846) | 4.8 (686) | Free | Health & Fitness |
| [Interval Flow - WOD Timer](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987) | 4.7 (168) | Free | Health & Fitness |

## More apps by Thang Nguyen

- [Water Tracker & Reminder](https://appshunter.io/ios/app/water-tracker-and-reminder/id933605957)
- [Massage Pillow](https://appshunter.io/ios/app/massage-pillow/id950192241)
- [7 Minute Workout Plus](https://appshunter.io/ios/app/7-minute-workout-plus/id954165191)
- [BedTime Sleep Fan Sounds](https://appshunter.io/ios/app/bedtime-sleep-fan-sounds/id960127578)
- [Stand Up Reminder](https://appshunter.io/ios/app/stand-up-reminder/id972116640)

All apps by Thang Nguyen: https://appshunter.io/developer/921360262

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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 2026-08-16.*