Comparison

Intervals Pro vs Intervals

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

Intervals

Design custom interval training routines for high-intensity workouts. This free timer app offers large, clear visuals and audible cues for seamless transitions between exercises. It's ideal for home or outdoor fitness sessions, including Tabata and yoga.

Highlights
  • Custom interval workout creation
  • Large font and contrasting colors
  • Audible interval transition cues
  • Supports Tabata and yoga workouts
  • No account or personal data required
  • Offline workout storage
Features
Read full description

Use HIIT Builder Lite as a free interval timer to manage your High Intensity Interval Training to maximize your fitness. Create custom interval workouts to energize your personal training. The workout is stored on your device. There is no need to create an account. We don’t ask for any personal health data. HIIT Builder Lite is a great interval training app for home workouts or workouts at the park. You can create Tabata workouts or any HIIT workout of your choice. The ability to customize any interval workout to your needs allows you to take control of your fitness using HIIT Builder Lite as an interval timer for high intensity interval training. HIIT Builder Lite can also be used for custom yoga and other custom movement workouts. HIIT Builder Lite uses large fonts and contrasting colors to make it easy to see where you are in an exercise in your interval workout. Interval transitions are easy to see on the user interface. The app also rings bells when switching from one workout interval to the next workout interval. Each interval workout can be completely customized. You can have each exercise interval be the same length or you can modify each interval’s length to get exactly what you need from the exercise. Create as many interval workouts as you want. Download HIIT Builder Lite for a free interval timer. Thoughts, concerns, suggestions? We're always trying to improve. Please email us at info@hiitbuilderapp.com

Screenshots

Intervals Pro4 screens
Intervals4 screens

Verdict

The call

The clearest difference is in-app purchases: Intervals at none against Intervals Pro's 8. Intervals also leads on rating (5.0 vs 4.8) and iOS requirement (12.1 vs 17.5). Intervals Pro's advantage is ads (none vs shown) and update cadence (every 8 days vs every 4 months). On price and device support 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. Intervals asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Intervals holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Intervals Pro ships an update every 8 days, Intervals every 4 months. The most recent releases landed on October 18, 2026 and October 2, 2026 respectively.

Scorecard7 real differences · 3 level
Intervals Pro versus Intervals: the parameters behind the verdict, then further details
ParameterIntervals ProIntervals
PriceFreeFree
Rating4.8 (14K ratings)5.0 (1 ratings) — better
Positive reviews84.3% of reviews—
Number of ratings14K — better1
Update frequencyEvery 8 days — betterEvery 4 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.512.1 — better
Further details — not scored
Size69 MB15 MB
Age rating4+12+
DeveloperIntervals, LLCCurtis Wichern

Customer experience

Intervals Pro

All ratings13,612 ratings
Positive95.1%
Neutral1.7%
Negative3.2%
Written reviews1,085 reviews
Positive84.3%
Neutral4.9%
Negative10.8%

Intervals

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

Intervals

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
None

Intervals

No in-app purchases

Questions

Is Intervals Pro free?
Intervals Pro is free to download, with in-app purchases available.
Is Intervals free?
Intervals is free to download, with no in-app purchases.
Which has better reviews, Intervals Pro or Intervals?
Intervals is rated higher. Intervals Pro averages 4.8 out of 5 from 14K ratings, while Intervals averages 5.0 from 1 ratings.
Do Intervals Pro or Intervals have ads?
Intervals shows ads; Intervals Pro does not.
Which is updated more often, Intervals Pro or Intervals?
Intervals Pro ships an update every 8 days, and Intervals every 4 months. Most recently, Intervals Pro was updated on October 18, 2026 and Intervals on October 2, 2026.

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