# HIIT: Simple interval timer — Interval Running, Run keeper

> Customizable interval running tracker with real-time data and Apple Watch support. (iPhone/iPad app by Maxim Kazakov.)

- Source: https://appshunter.io/ios/app/hiit-simple-interval-timer/id6449472984 (this page in markdown: same URL + `.md`)
- Developer: [Maxim Kazakov](https://appshunter.io/developer/1290266003)
- Category: Health & Fitness, Utilities
- Price: Free with in-app purchases
- Rating: 4.30/5 from 34 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 83 MB
- Languages: American English
- Released: 2023-06-21
- Data updated: 2026-09-18
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/hiit-simple-interval-timer/id6449472984/reviews.md

## What is HIIT?

Tired of tapping through menus before a run? Interval Running is a simple HIIT, tabata, and interval timer - say what you want, it builds the intervals, you run.

Just tell it what you want. Say something like "eight rounds, 30 seconds fast, 30 seconds easy" and the timer builds your program right then - no forms, no menus, no fields to fill in before you can start running.

Prefer to build it yourself? You can:
- Set work and rest by time, distance, or leave it open
- Choose HIIT, tabata, fartlek, tempo, or plain run/walk intervals
- Save a routine once, reuse it whenever you want

Everything you need is on the screen while you run, no extra taps.
- Interval, pace, cadence, and heart rate at a glance
- Audio cues tell you when to switch, no need to look down
- Full Apple Watch support - leave your phone at home

You don't want a training plan, a coach, or a program - you want a timer that starts and stops intervals exactly when you tell it to. You want to set up a workout on the way to the track without stopping to tap through screens. You do tabata or HIIT sessions and just need something that counts rounds. You run intervals on your own terms and don't want an app deciding your pace for you.

After each run, see your intervals, pace, and heart rate. Export GPX files, sync with Apple Health, and connect an external heart rate monitor if you use one.

Health app integration
With your permission, your interval runs count toward Activity Rings, including the Exercise and Move rings.

Say it. Start it. Run.

Terms of Use:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Customizable intervals (time, distance, open)
- Support for HIIT, tempo, fartlek, pyramid, progression workouts
- Real-time tracking of pace, cadence, heart rate
- Audio cues for guidance
- Phone-free Apple Watch operation
- Post-run analysis and GPX export
- Apple Health integration

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Interval Run Premium Yearly | $59.99 | per year |
| Premium Weekly | $3.99 | per 7 days |
| Premium Annual Special Offer | $29.99 | per year |
| Premium Monthly | $9.99 | per month |
| Premium Monthly Day 1 | $4.99 | per month |
| Premium 3 Months | $19.99 | per 3 months |
| Premium Monthly Day 2 | $0.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Intreval Run Premium Lifetime | $39.99 | one-time |


## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/hiit-simple-interval-timer/id6449472984/reviews.md

### 1/5 — Not Good

*2025-05-24*

This app is worthless. Don't spend money on it

### 5/5 — Helps a lot

*2025-05-03*

I do cross country and I used to run kinda slow + I couldn’t run any longer than a mile, but this actually helped a LOT (especially with distance) :)

### 5/5 — New Runner

*2025-04-24*

I am brand new to this app but love it so far!

**Developer response:** Thank you so much! We're thrilled you're enjoying the app — more great updates are on the way!

### 1/5 — Doesn’t work on Apple Watch

*2024-09-23, version 4.0.2*

It doesn’t work on Apple Watch

### 3/5 — Good but glitches

*2024-07-10, version 4.0.2*

Very simple and easy to use - when it actually works how it should. I’d probably say every 1 in 5 times I use this app it decides to pause and stop the timer which I can’t seem to get going again, so I’m fumbling with the app whilst I run, which completely throws me off for the rest of my run. Apart from that the app is good, it’s accurate with pace and distance but just needs these glitches fixed.

### 5/5 — AMAZING

*2024-07-08*

Finally I can set up my apple watch running training from the phone and not loosing time from my watch. Amazing job

**Developer response:** Thank you so much!

### 5/5 — Alex

*2024-04-15*

Nice app! Use it for running.

## Frequently asked questions about HIIT

### What types of workouts can I create with Interval Running?

Interval Running allows you to design a variety of workouts including HIIT, tempo, fartlek, pyramid, and progression sessions. You can customize each interval by time or distance, or set it to run 'open'.

### Does Interval Running work with Apple Watch?

Yes, Interval Running is designed to work seamlessly with Apple Watch, enabling you to run phone-free. It provides real-time tracking and audio cues directly on your watch.

### How does Interval Running track my progress?

The app offers detailed post-run analysis, allowing you to review your performance. It also syncs your workouts with Apple Health, contributing to your Activity Rings.

### Can I export my run data from Interval Running?

Yes, Interval Running allows you to export your run data in GPX file format. This is useful for further analysis or for use with other mapping and tracking applications.

### What are the subscription options for Interval Running?

Interval Running offers several subscription plans, including Premium Weekly with a 3-day free trial, Premium Monthly options starting at $0.99 with a 2-day trial, and a Premium Yearly plan for $19.99. These plans unlock advanced features.

### Does Interval Running have ads?

Yes, Interval Running contains advertisements. As it is free to download and use with in-app purchases, ads are displayed to support the app's development.

### What is the age rating for Interval Running?

Interval Running has an age rating of 4+. This indicates it is suitable for a wide range of users, including children, and does not contain mature content.

### How often is Interval Running updated?

The app was last updated on December 30, 2025, with version 6.1.0. This suggests a commitment to regular updates and improvements based on user feedback and new features.

## Version history (last 5 releases)

### 7.1.0 — 2026-09-16

Bug fixes and improvements

### 7.0.0 — 2026-09-06

Voice cues. A real voice now announces each interval: its name, target, and distance or time, plus halfway, last-interval and finish cues. Works with your own interval names on iPhone and Apple Watch, with new audio modes so cues duck or mix with your music.

Live mirroring from Apple Watch. Start a workout on the Watch and follow it live on your iPhone. Pause, skip or finish from either device. Voice cues play through the phone.

Apple Health. Workouts and routes are saved to Health, and heart rate can come from Health-connected devices.

Better pace and distance. New GPS pipeline with smoothing and speed-adaptive pace filtering, plus current pace and a pace metric setting on the Watch.

### 6.1.6 — 2026-05-30

Added small improvements

### 6.1.5 — 2026-05-12

Bug fixes and small improvements

### 6.1.4 — 2026-04-27

Bug fixes and small improvements

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| App | Rating | Price | Category |
| --- | --- | --- | --- |
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## More apps by Maxim Kazakov

- [Currency converter, money](https://appshunter.io/ios/app/currency-converter-money/id1344922957)
- [Run tracker: interval timer](https://appshunter.io/ios/app/run-tracker-interval-timer/id1547576700)
- [QR Code and Barcode: Scanner](https://appshunter.io/ios/app/qr-code-and-barcode-scanner/id1574087047)
- [Learn German Dictionary: Worty](https://appshunter.io/ios/app/learn-german-dictionary-worty/id6757338347)

All apps by Maxim Kazakov: https://appshunter.io/developer/1290266003

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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 2026-09-18.*