Intervals Pro vs iRox
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
iRox
This app transforms your Apple Watch into a dedicated timer for HYROX races, capturing your entire event as a single workout in Apple Health. It also allows you to import past race results and track your progress over time.
- Dedicated race timer for HYROX
- Captures entire race as one Apple Health workout
- Import past race results via screenshot or PDF
- Race history with full splits
- Progress tracking across races and stations
- No subscription or ads
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iRox — Fitness Race Timer Your entire race, timed as one workout. iRox turns your Apple Watch into a dedicated race timer for HYROX racing. One tap at the start, double tap through each run and station, and your whole race — splits, heart rate, pace — is captured as a single continuous workout in Apple Health. RACE ON APPLE WATCH — NO SUBSCRIPTION • Full race mode on your wrist: 8 runs and 8 stations with big, glanceable tap targets built for race intensity • Live splits, elapsed time, and heart rate at a glance • Your entire race saved as one Apple Health workout — no more stitching together segments NEW: IMPORT YOUR PAST RACES • Screenshot import — snap a photo of any past result from the HYROX website and import directly to iRox • PDF import — export a result from the HYROX website as a PDF and bring it straight in • Add your name once and iRox matches imported results to you, so every race lands on your profile with zero retyping TRAINING INSIGHTS • Race history with full splits for every run and station • Track your progress across races and watch stations improve YOUR DATA • Your name is used to match imported results to your profile — and, if you choose to share a result, to credit it to you in the community database. • iRox is crowdsourcing race results: in an upcoming update, results athletes choose to share will be searchable by everyone in the app. • Sharing is always your choice — nothing becomes public unless you opt in, and you can remove shared results at any time. • iRox never sells your data — shared or not. • Everything is stored securely on iRox servers, and you can delete your data at any time. One purchase unlocks iPhone + Apple Watch. No subscription. No ads.
Screenshots
Verdict
The clearest difference is monetization model: iRox at free against Intervals Pro's free with in-app purchases. iRox also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 85%). Intervals Pro's advantage is ratings volume (14K vs 1) and iOS requirement (17.5 vs 26.5). On price, update cadence, 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 iRox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
iRox 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. Written reviews point the same way: 85% of Intervals Pro's written reviews are positive against 100% of iRox's.
Intervals Pro ships an update weekly, iRox every 5 days. The most recent releases landed on November 14, 2026 and November 10, 2026 respectively.
| Parameter | Intervals Pro | iRox |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (14K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 84.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 14K — better | 1 |
| Update frequency | Weekly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 17.5 — better | 26.5 |
| Further details — not scored | ||
| Size | 66 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Intervals, LLC | Mount Airy Tech LLC |
Customer experience
Intervals Pro
iRox
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
iRox
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
iRox
- Apple Watch App$5.99









