Comparison

Interval Timer vs Intervals Pro

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

Head to head
About

Interval Timer

Organize your running and high-intensity interval training sessions with ease. Quickly set up custom time intervals for running, walking, warm-ups, and cool-downs. Receive voice and vibration notifications for interval changes, and enjoy background music playback.

Highlights
  • Intuitive design
  • Customizable time intervals
  • Warm-up and cool-down timers
  • Voice and vibration notifications
  • Background music support
  • Foreground/background operation
Features
Read full description

Create custom run-walk intervals, HIIT sessions, and cardio workouts in seconds. Train with voice announcements and haptic cues, control workouts from Apple Watch, save sessions to Apple Health, and track your workout history. Set your intervals, hit Start, and focus on your workout—not the clock. CREATE YOUR CUSTOM WORKOUTS • Build warm-up, running, walking, and cool-down intervals • Customize each interval duration and repeat cycle for any training goal • Save multiple custom workouts for quick access • Preview your full workout before you start • Relaunch your favorite sessions in just a few taps STAY IN THE FLOW • Hear clear voice announcements at every interval transition • Feel haptic cues when it’s time to change pace • Keep your workout running while your iPhone is locked or the app is in the background • Listen to music, podcasts, or audiobooks while you train TRAIN WITH APPLE WATCH • Sync your custom workouts to Apple Watch • Start, control, and monitor workouts directly from your wrist • Train phone-free with workouts ready on your Watch • Track heart rate, distance, and active energy during your workout • Save completed workouts to Apple Health TRACK YOUR PROGRESS • Browse completed workouts in calendar and history views • Review total duration, intervals, distance, and active energy • Look back at your training over time • Share your workout results • Export and restore backups of your workout data BUILT FOR EVERY WORKOUT Whether you're starting a beginner run-walk program, adding sprint intervals to your training, preparing for a race, or building a focused HIIT session, Interval Run keeps you on track from the first interval to the last. Create your workout. Start running. Let Interval Run handle the timing. Some features shown, including multiple workouts and full workout history, require Interval Run Pro. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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

Screenshots

Interval Timer4 screens
Intervals Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Intervals Pro at 84% against Interval Timer's 21%. Intervals Pro also leads on update cadence (every 8 days vs every 3 months) and rating (4.8 vs 4.5). On price, ads, in-app purchases and monetization model 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. Interval Timer sells 3 in-app purchases, starting at $2.99 per month and Intervals Pro sells 8 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Intervals Pro holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 534, so its average is the more settled of the two. Written reviews point the same way: 21% of Interval Timer's written reviews are positive against 84% of Intervals Pro's.

UpkeepUpdate frequency

Interval Timer ships an update every 3 months, Intervals Pro every 8 days. The most recent releases landed on September 1, 2026 and September 24, 2026 respectively.

Scorecard5 real differences · 5 level
Interval Timer versus Intervals Pro: the parameters behind the verdict, then further details
ParameterInterval TimerIntervals Pro
PriceFreeFree
Rating4.5 (534 ratings)4.8 (14K ratings) — better
Positive reviews21.1% of reviews84.4% of reviews — better
Number of ratings53414K — better
Update frequencyEvery 3 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS26.017.5 — better
Further details — not scored
Size11 MB69 MB
Age rating4+4+
DeveloperRoma SosnovskyIntervals, LLC

Customer experience

Interval Timer

All ratings534 ratings
Positive86.9%
Neutral3.4%
Negative9.7%
Written reviews95 reviews
Positive21.1%
Neutral8.4%
Negative70.5%

Intervals Pro

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

User reviews

Interval Timer

From 534 App Store ratings

What we love

  • 🚀 Simple and easy to use
  • 👍 Customizable intervals
  • 🚀 Straightforward app
  • 👍 Works as advertised
  • 👍 Great for getting back into running

Room to improve

  • 🔇 No audio prompts when screen is locked
  • 🔋 High battery consumption
  • 🔒 Limited free version
  • 🐛 Inconsistent performance
  • 🔇 Voice prompts not loud enough

Intervals Pro

From 14K App Store ratings

What we love

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

Room to improve

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

Bugs and requests

Interval Timer

Reported bugs

4 issues
  • Timer resets or freezes during workout
  • Prompts not working when phone is locked or in pocket
  • Unexpected interval changes or duration changes
  • Compatibility issues with music playback

Requested features

6 requests
  • Option to pause/resume timer
  • Larger time remaining display
  • Apple Watch app
  • Ability to play audio prompts even with screen off
  • More interval options (run/walk/jog)
Show 1 more
  • Congratulatory audio cue at the end

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

In-app purchases

3 purchases

Interval Timer

Subscriptions2
  • Interval Run Pro Monthly$2.991 Month
  • Interval Run Pro Annual7 Days trial$19.991 Year
One-time1
  • Full Version$2.99
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

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is Intervals Pro free?
Intervals Pro is free to download, with in-app purchases available.
Which has better reviews, Interval Timer or Intervals Pro?
Intervals Pro is rated higher. Interval Timer averages 4.5 out of 5 from 534 ratings, while Intervals Pro averages 4.8 from 14K ratings.
Do Interval Timer or Intervals Pro have ads?
Neither Interval Timer nor Intervals Pro shows ads.
Which is updated more often, Interval Timer or Intervals Pro?
Interval Timer ships an update every 3 months, and Intervals Pro every 8 days. Most recently, Interval Timer was updated on September 1, 2026 and Intervals Pro on September 24, 2026.

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