Comparison

Intervals Pro vs Interval timer · Hiit timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Intervals Pro

Create and follow custom interval training routines for various fitness activities. This app offers extensive customization for intervals, alerts, and goals, with seamless integration for Apple Watch and Apple Health.

Highlights
  • 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
Features
Read full description

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

About

Interval timer · Hiit timer

This workout app offers customizable interval and rest times, with audio guidance that continues even when the app is in the background. Track your progress with detailed history and statistics, and easily repeat past workouts. It's designed to enhance your fitness routine without interrupting your music.

Highlights
  • Customizable interval and rest times
  • Audio guidance (voice or beeps)
  • Background audio support
  • Workout history and statistics
  • Repeat previous workouts
  • Non-interference with music
Features
Read full description

Interval Timer is a flexible and convenient workout app with the following notable features: • Customizable Time Settings: You can easily drag and drop to set the time for workout intervals and rest periods according to your preferences. • Easy Start: Simply tap to begin the countdown timer and start your workout session. • Non-Interference with Music: The app does not interrupt the music you are listening to or other apps on your device. • Guidance via Voice or Beeps: You can choose the form of guidance to monitor and adjust your workout pace. • Audio Guidance even when run the app in background: You can exit the app and still receive guidance through audio, allowing you to focus fully on your exercises. • Detailed History and Statistics: Track your workout progress through automatically recorded data and metrics. • Repeat Previous Workouts: Save time by reusing previous setups and exercises from your workout history. • Multi-Functional Timer: Besides being a workout timer, it can also be used for various other timing purposes. These features make Interval Timer an essential and effective workout assistant for anyone dedicated to improving their fitness and health. Download now to experience and enhance your workout performance starting today! Upgrade to Premium: • Interval Timer subscription is billed monthly to the selected plan. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Let us know about any bugs, questions, feature requests or any other suggestions. Thank you For more infos, Please visit: https://apps.unitvn.com/terms https://apps.unitvn.com/policy

Screenshots

Intervals Pro4 screens
Interval timer · Hiit timer4 screens

Verdict

The call

The clearest difference is ads: Intervals Pro at none against Interval timer · Hiit timer's shown. Intervals Pro also leads on ratings volume (14K vs 16). Interval timer · Hiit timer's advantage is iOS requirement (14.0 vs 17.5). On price, rating, update cadence and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month and Interval timer · Hiit timer sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Intervals Pro against 4.8 for Interval timer · Hiit timer. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 16, so its average is the more settled of the two.

UpkeepUpdate frequency

Intervals Pro ships an update every 8 days, Interval timer · Hiit timer weekly. The most recent releases landed on September 24, 2026 and August 20, 2026 respectively.

Scorecard3 real differences · 7 level
Intervals Pro versus Interval timer · Hiit timer: the parameters behind the verdict, then further details
ParameterIntervals ProInterval timer · Hiit timer
PriceFreeFree
Rating4.8 (14K ratings)4.8 (16 ratings)
Positive reviews84.4% of reviews—
Number of ratings14K — better16
Update frequencyEvery 8 daysWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.514.0 — better
Further details — not scored
Size69 MB82 MB
Age rating4+4+
DeveloperIntervals, LLCUnitVN.,JSC

Customer experience

Intervals Pro

All ratings13,612 ratings
Positive95.1%
Neutral1.7%
Negative3.2%
Written reviews1,071 reviews
Positive84.4%
Neutral4.9%
Negative10.7%

Interval timer · Hiit timer

All ratings16 ratings
Positive93.8%
Neutral0.0%
Negative6.3%

Bugs and requests

Intervals Pro

Reported bugs

2 issues
  • Workout data not syncing correctly
  • App crashes or freezes on certain devices

Requested features

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

Interval timer · Hiit timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Intervals Pro

Subscriptions2
  • Monthly Membership7 Days trial$2.991 Month
  • Yearly Membership7 Days trial$19.991 Year
One-time6
  • Generous Tip$0.99
  • Awesome Tip$1.99
  • Massive Tip$4.99
Show 3 more
  • Amazing Tip$9.99
  • Intervals Pro (Legacy)$69.99
  • Lifetime Access$69.99
3 purchases

Interval timer · Hiit timer

Subscriptions2
  • Premium Weekly3 Days trial$2.997 Days
  • Premium Monthly$4.991 Month
One-time1
  • Lifetime package$19.99

Questions

Is Intervals Pro free?
Intervals Pro is free to download, with in-app purchases available.
Is Interval timer · Hiit timer free?
Interval timer · Hiit timer is free to download, with in-app purchases available.
Which has better reviews, Intervals Pro or Interval timer · Hiit timer?
Intervals Pro and Interval timer · Hiit timer are both rated 4.8 out of 5 on the App Store, from 14K and 16 ratings respectively.
Do Intervals Pro or Interval timer · Hiit timer have ads?
Interval timer · Hiit timer shows ads; Intervals Pro does not.
Which is updated more often, Intervals Pro or Interval timer · Hiit timer?
Intervals Pro ships an update every 8 days, and Interval timer · Hiit timer weekly. Most recently, Intervals Pro was updated on September 24, 2026 and Interval timer · Hiit timer on August 20, 2026.

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