Intervals Pro vs Interval 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
This app provides a customizable interval timer for various training styles like HIIT, boxing, and Tabata. It features a distraction-free interface, audio cues, and haptic feedback for focused workouts. It also integrates with HealthKit to log your training sessions.
- Customizable work/rest intervals
- HIIT, Sprint, Boxing, and Tabata timers
- Rounds and sets control
- Audio cues and voice guidance
- Haptic feedback
- HealthKit integration
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Train with precision. Perform with intent. KNTC is a powerful interval timer built for athletes, coaches, and anyone who trains with purpose. Whether you’re doing HIIT, sprint training, boxing rounds, or classic Tabata, KNTC gives you a fast, distraction-free timer designed for performance. Built with a bold, CrossFit-inspired design and a landscape-first workout view, KNTC keeps your focus where it belongs: on the work. Built for every interval workout - Interval Timer - Fully customizable work/rest intervals - HIIT Timer: Perfect for high-intensity interval training - Sprint Timer: Short, explosive efforts with precise timing - Boxing Timer: Rounds, rest, and round warnings - Tabata Timer - Rounds & Sets: Train by rounds with total control - Stopwatch: Simple, accurate time tracking Smart timer input Create timers in seconds: - Adjust work, rest, rounds, and sets - Reuse and tweak workouts instantly - Designed for speed, no clutter, no friction Who is KNTC for? - CrossFit & functional fitness athletes - Boxers & martial artists - Runners & sprinters - Coaches & gyms - Anyone who trains in rounds, intervals, or Tabata Designed for real training - Clear audio cues & voice guidance - Haptic feedback for hands-free workouts - High-contrast mode for intense environments - Optimized landscape display for gym floors and wall mounts KNTC integrates with the HealthKit to log your workouts. -- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ratings volume: Intervals Pro at 14K against Interval Timer's 2. Intervals Pro also leads on update cadence (every 8 days vs monthly) and device support (3 vs 1). Interval Timer's advantage is rating (5.0 vs 4.8). 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
Both are free to download. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month and Interval Timer sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Interval Timer 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 2, so its average is the more settled of the two.
Intervals Pro ships an update every 8 days, Interval Timer monthly. The most recent releases landed on October 12, 2026 and September 20, 2026 respectively.
| Parameter | Intervals Pro | Interval Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (14K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 84.4% of reviews | — |
| Number of ratings | 14K — better | 2 |
| Update frequency | Every 8 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 17.5 — better | 26.0 |
| Further details — not scored | ||
| Size | 69 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Intervals, LLC | Ruslan Sayfutdinov |
Customer experience
Intervals Pro
Interval Timer
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
Not enough reviews yet to summarise bugs or requests.
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
- KNTC Interval Timer Monthly Access$2.991 Month
- Weekly Access$4.997 Days
- KNTC Interval Timer Annual Access$19.991 Year
- KNTC Interval Timer PRO$29.99
Questions
Is Intervals Pro free?
Is Interval Timer free?
Which has better reviews, Intervals Pro or Interval Timer?
Do Intervals Pro or Interval Timer have ads?
Which is updated more often, Intervals Pro or Interval Timer?
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