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.
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.
- 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
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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
Interval Timer □ HIIT Timer
Create custom workout timers with adjustable intervals for exercise and rest. Track your progress with detailed history and statistics, and repeat past workouts easily. Enjoy audio cues without interrupting your music.
- Customizable intervals
- Workout and rest timers
- Voice or beep guides
- Background audio support
- Workout history and statistics
- Repeat previous workouts
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A simple and beautiful interval timer. 1. Drag to set your custom intervals for workout, rest, rounds, etc 2. Tap to start. Interval Timer doesn't interfere with your music or other apps: ∙ Listen to your music apps while you workout. ∙ Voice or beep guides for every workout. ∙ You can leave the app and still listen to the audio guides, in order to follow a workout you found online. And no need to manually record your workouts: ∙ Detailed history and statistics pages to track your progress. ∙ Repeat a previous workout from your history, so you don't need to set it again. If you have any ideas for how to improve the app, just tap "Contact Support' inside the app and let us know! We are always trying to improve Interval Timer This app includes an optional auto-renewable subscription (Premium Pass): Premium Pass beings with a free trial period, then an auto-renewable monthly subscription when trial ends. Payment will be charged to your Apple account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Apple Account Settings after purchase. Any unused portion of the free initial period will be forfeited when you purchase a subscription. Privacy Policy: https://float.support/interval-timer/privacy Terms of Use: https://float.support/interval-timer/terms
Screenshots
Verdict
Intervals Pro and Interval Timer □ HIIT Timer both sit at 4.8 stars, but that hides the real split: 84% of Intervals Pro's written reviews are positive against 61% of Interval Timer □ HIIT Timer's. Intervals Pro also leads on update cadence (every 8 days vs every 5 weeks). Interval Timer □ HIIT Timer's advantage is ratings volume (86K vs 14K) and iOS requirement (15.6 vs 17.5). On price, rating, ads 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
Both are free to download. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month and Interval Timer □ HIIT Timer sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
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: Interval Timer □ HIIT Timer has 86K ratings behind it against 14K, so its average is the more settled of the two. Written reviews are what separate them: 84% of Intervals Pro's written reviews are positive against 61% of Interval Timer □ HIIT Timer's.
Intervals Pro ships an update every 8 days, Interval Timer □ HIIT Timer every 5 weeks. Both last shipped on September 24, 2026.
| Parameter | Intervals Pro | Interval Timer □ HIIT Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (14K ratings) | 4.8 (86K ratings) |
| Positive reviews | 84.4% of reviews — better | 60.7% of reviews |
| Number of ratings | 14K | 86K — better |
| Update frequency | Every 8 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.5 | 15.6 — better |
| Further details — not scored | ||
| Size | 69 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Intervals, LLC | Float Tech, LLC |
Customer experience
Intervals Pro
Interval Timer □ HIIT Timer
User reviews
Intervals Pro
From 14K App Store ratingsWhat 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
Interval Timer □ HIIT Timer
From 86K App Store ratingsWhat we love
- 🚀 Simple and easy to use
- 👍 Customizable settings
- 🚀 Intuitive interface
- 🚀 Effective for HIIT workouts
- 👍 Helpful voice prompts
Room to improve
- 🔒 Requires subscription after limited free use
- 🐛 Music volume issues with voice prompts
- 🐛 Inconsistent behavior when switching apps
- 🐛 Lack of final workout notification
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
Reported bugs
3 issues- Timer not always accurate
- Favorites/saved workouts feature not working
- Inconsistent behavior when pausing/resuming
Requested features
3 requests- Ability to save and name custom workouts
- More flexibility in exercise/rest time settings
- Option to adjust volume of voice prompts
In-app purchases
Intervals Pro
- Monthly Membership7 Days trial$2.991 Month
- Yearly Membership7 Days trial$19.991 Year
- Generous Tip$0.99
- Awesome Tip$1.99
- Massive Tip$4.99
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- Amazing Tip$9.99
- Intervals Pro (Legacy)$69.99
- Lifetime Access$69.99
Interval Timer □ HIIT Timer
- Premium Pass7 Days trial$1.991 Month
- Premium Pass7 Days trial$2.991 Month
- Lifetime Pass$14.99
- Lifetime Pass$19.99
- Premium Forever Promo$29.99
Questions
Is Intervals Pro free?
Is Interval Timer □ HIIT Timer free?
Which has better reviews, Intervals Pro or Interval Timer □ HIIT Timer?
Do Intervals Pro or Interval Timer □ HIIT Timer have ads?
Which is updated more often, Intervals Pro or Interval Timer □ HIIT Timer?
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