# Intervals Pro: HIIT Timer — Running & Fitness Workouts

> Customizable interval timer for diverse fitness workouts, with Apple Watch and Health integration. (iPhone/iPad app by Intervals, LLC.)

- Source: https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938 (this page in markdown: same URL + `.md`)
- Developer: [Intervals, LLC](https://appshunter.io/developer/331071662)
- Category: Health & Fitness, Utilities
- Price: Free with in-app purchases
- Rating: 4.80/5 from 13,511 App Store ratings · 1,045 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.5 · 67 MB
- Languages: American English, Danish, Dutch, French (France), German (Germany), Italian, Norwegian Bokmål, Polish, Chinese (Simplified, China), European Spanish and 1 more
- Released: 2015-02-18
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938/reviews.md

## What is Intervals Pro?

Custom Interval Training at its best for iPhone, Apple Watch and iPad. Featured by Apple and recommended by fitness instructors, personal trainers, marathon runners, and coaches.

Let Intervals Pro guide you through any type of interval workout: HIIT, running, strength training, yoga, stretching, circuit training, boxing, MMA, elliptical, rehabilitation, meditation, 7-minute workouts, and many more.

FEATURED BY
• Apple - App of the Day in 132 Countries
• Apple - Workout with Apple Watch, Quick HIIT Workouts
• Women's Health Magazine
• COACH Magazine
• SixColors.com

HIGHLIGHTS
• Highly Customizable
• Home Screen Widgets to quickly launch timers
• Spoken interval names and prompts
• Customizable alert sounds
• Standalone Apple Watch workouts. Leave your iPhone at home!
• Workout History using Apple Health data
• View an Apple Watch workout live on your iPhone!
• Run in the background with the screen locked
• Play music or podcasts using the app of your choice
• Bluetooth heart rate monitor support for Apple Watch or iPhone
• Fill your Activity Rings
• Siri Shortcuts
• Share timers with friends
• Time and Distance Goals
• Running Pace and Heart Rate Targets
• Auto pause and resume
• Send completed workouts to Strava
• Confetti!

PERSONALIZE YOUR WORKOUT
• Customize the Name, Duration, Alert, and Color for each interval
• Customize Alert Sounds and Voice Prompts to guide you through your workout
• Set a Countdown Alert and vibrations when the interval is about to end
• Optional halfway alert
• Set target heart rate ranges for each interval
• Set time and distance goals

FLEXIBLE INTERVAL DURATIONS
• Time based (e.g., 45 seconds)
• Distance-based (e.g., 0.5 MI or KM)
• Count up intervals keep running until your ready for the next interval
• Estimated time or distance. Count down time or distance to zero and then continue the interval, counting up until you're ready to move on.

THE BEST APPLE WATCH INTERVAL TIMER
• Leave your phone at home with our standalone Apple Watch app
• Control your music or podcasts on the "Now Playing" screen
• View an Apple Watch workout live on your iPhone
• Alert Sounds and Voice Prompts to guide you through your workout
• Configurable haptic alert countdown that taps you on the wrist when the interval is ending
• Track heart rate, calories, distance, and pace
• Route tracking for running, walking, and cycling
• Workouts contribute to the Apple Watch Activity Rings

WORKOUT HISTORY USING APPLE HEALTH
• Intervals Pro has the best Apple Health integration of any interval training app
• Track heart rate, calories, distance, and pace
• Route tracking for running, walking, and cycling
• Detailed stats for every interval
• All your data is safely stored in Apple Health

GREAT FOR RUNNING AND CYCLING
• Interval duration can be set to either a specified time or distance
• Display current pace, pace for the interval, or pace for the entire run
• Configure heart rate ranges per interval
• Analyze each interval of your run in the workout history

MULTIPLE VOICES AND LANGUAGES
• Select the language and voice to use for all spoken alerts.
• Spoken alerts are localized to 10 languages. Chinese (simplified), Danish, Dutch, French, German, Italian, Norwegian, Polish, Spanish, and Swedish.

Get Intervals Pro today, and your workouts will never be the same!

SUBSCRIPTION INFO

Intervals Pro is free to download and has a free timer. To create multiple timers and unlock all the features of the app, you may choose between a monthly or yearly auto-renewing subscription option.

Upon confirmation of the purchase, payment will be charged to your credit card through your iTunes account. Subscription renews automatically unless canceled at least 24 hours before the end of the subscription period.

Subscriptions can be managed and auto-renewal turned off in Account Settings in the App Store app.

Privacy Policy and Terms of Service: https://intervalspro.com/privacy-policy.html

## Key features

- Highly customizable intervals (time/distance)
- Spoken interval names and prompts
- Standalone Apple Watch workouts
- Workout history with Apple Health
- Home screen widgets for quick launch
- Bluetooth heart rate monitor support
- Siri Shortcuts integration

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly Membership | $19.99 | per year |
| Monthly Membership | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Generous Tip | $0.99 | one-time |
| Awesome Tip | $1.99 | one-time |
| Massive Tip | $4.99 | one-time |
| Amazing Tip | $9.99 | one-time |
| Intervals Pro (Legacy) | $69.99 | one-time |
| Lifetime Access | $69.99 | one-time |


## What do users think of Intervals Pro?

Overall sentiment: positive

**Pros**

- 👍 Customizable timers and intervals
- 🚀 Seamless Apple Watch integration
- 💪 Helps with fitness goals and training
- 🔍 Detailed workout tracking and analytics
- 🎨 Intuitive and user-friendly interface
- 💻 Responsive and helpful developer support

**Cons**

- 🐛 Occasional sync and connectivity issues
- 🔍 Lack of clear guidance and documentation
- 💰 Paid version required for full functionality

**Commonly reported bugs**

- Workout data not syncing correctly
- App crashes or freezes on certain devices

**Most requested features**

- More customization options for interval displays
- Ability to batch delete or manage workout history
- Integration with more third-party fitness apps

## Recent user reviews (10 of 1,045)

All indexed reviews: https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938/reviews.md

### 1/5 — Doesn’t work

*2026-08-04, version 2026.7*

GPS distance does not work, when editing and saving workouts it does not do the edits it stays stuck on what was there before

### 5/5 — So much flexibility in configuration - Great support

*2026-08-02, version 2026.7*

There is so much flexibility and customization that you can build into your timers. Support is very responsive too.

### 5/5 — Great! Constant updates

*2026-08-01, version 2026.7*

I would be happy enough with this as a phone app, but it’s the watch integration that makes it one of my all-time favourite apps, period. Use it every day for exercises as well as any time I need a stop watch – much more flexible and nicer UI than the built-in versions.

### 4/5 — Indispensable

*2026-07-31, version 2026.7*

I’ve been using this app for at least seven years and it’s indispensable for training and other timing purposes. The customer support is also very good.

### 4/5 — Good app

*2026-07-27, version 2026.7*

This app is getting better and better

### 3/5 — A lot of times; No maps load

*2026-07-27, version 2026.7*

All the variations of timers are great (with the paid version).  My main complaint is that all my run maps are just pending logs. They don’t seem like they will ever sync up with the actual workout.

### 5/5 — Honestly…

*2026-07-26, version 2026.7*

Everyone should own this app… it is one of the best apps out there. I fee like the applications of it’s functionality our vast. Anyone who buys this app and takes the time to put it to use will decide it’s amazing. From working out to kitchen timers to idk…. Endless possibilities where this app can be helpful.

### 5/5 — Awesome App

*2026-07-22, version 2026.7*

Very nice easy to use and customizable workout tracker

### 5/5 — Best app to get the job done!

*2026-07-20, version 2026.6*

Been using it for years. No subscription, purchase one time - money well invested!   Works great with my Apple Watch, and great for kettlebell sessions.

### 5/5 — My daily go to

*2026-07-19, version 2026.6*

Best intervals training app. Great integration options with Apple Watch as well as exporting to different apps and AI tools. Love it!

## Frequently asked questions about Intervals Pro

### What does Intervals Pro do?

Intervals Pro is a highly customizable interval training timer designed for a wide variety of workouts, including HIIT, running, strength training, yoga, and more. It allows users to create personalized routines with specific durations, alerts, and goals.

### What are the key features of Intervals Pro?

Key features include highly customizable intervals based on time or distance, spoken interval names and prompts, standalone Apple Watch workouts, integration with Apple Health for workout history, home screen widgets, and support for Bluetooth heart rate monitors.

### How is Intervals Pro priced?

The app is available for free with in-app purchases. This model allows users to try out basic functionalities before deciding to unlock premium features or content.

### What devices is Intervals Pro compatible with?

Intervals Pro is designed for iPhone, Apple Watch, and iPad. It offers a standalone experience on the Apple Watch, allowing users to leave their iPhone behind during workouts.

### What types of workouts can I use Intervals Pro for?

This app is versatile and can be used for numerous workout types, such as HIIT, running, strength training, yoga, stretching, circuit training, boxing, MMA, elliptical, rehabilitation, meditation, and 7-minute workouts.

## Version history (last 5 releases)

### 2026.7 — 2026-07-21

Restart the current interval quickly on iPhone and Apple Watch. Improvements to Strava upload and the 3-second countdown before the workout starts on Apple Watch.

### 2026.6 — 2026-07-13

New workout export options (Plain Text, Markdown, JSON), new Apple Watch customization options, and more...

### 2026.5 — 2026-06-15

The Logbook is easier to browse with a month picker, and completed workout stats are easier to share.

### 2026.4.1 — 2026-05-26

Fixed an issue where some timers could remain on screen after completion, even though the workout was saved. Improved permission checking during timer setup.

### 2026.4 — 2026-05-25

Sharing timers is easier with iCloud Share Links and improved file sharing, and we have given you more control when Apple Health is not desired or hasn’t been set up yet.

## Apps similar to Intervals Pro

| 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 |
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| [Interval Timer □ HIIT Timer](https://appshunter.io/ios/app/interval-timer-hiit-timer/id1124297113) | 4.8 (85,854) | Free | Health & Fitness |
| [Tabata Timer: Interval Timer.](https://appshunter.io/ios/app/tabata-timer-interval-timer/id1255964203) | 4.9 (9,173) | Free | Health & Fitness |
| [Running Trainer: Tracker&Coach](https://appshunter.io/ios/app/running-trainer-tracker-and-coach/id1205237896) | 4.9 (113,925) | Free | Health & Fitness |
| [Running Walking Tracker Goals](https://appshunter.io/ios/app/running-walking-tracker-goals/id1136617388) | 4.8 (106,131) | Free | Health & Fitness |

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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 2026-08-27.*