Intervals Pro vs Phyzseek
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
Phyzseek
Engage in doctor-developed, high-intensity interval training designed to burn fat, build muscle, and improve fitness. Track progress, compete with friends, and stay motivated with personalized workouts and real-time feedback.
- Doctor-developed HIIT workouts
- Calorie and fat burning
- Muscle development
- Personalized exercise modifications
- Integrated timers and pacer
- Heart rate monitoring
- Workout result tracking
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Phyzseek is the doctor-designed HIIT app. One advanced workout a day, around 20 minutes, designed by a physician and ACSM-certified trainer, plus run tracking for your days off. YOUR WORKOUT IS ALREADY WAITING The PHYZWOD is Phyzseek's workout of the day. No planning. Open the app and press READY. - A new advanced workout every day: intervals, AMRAPs, ladders, timed rounds and runs - Programmed so your different energy systems are trained in balance - Each exercise switches to the equipment you own, with an easier version one tap away - A video demo and coaching cues for every exercise - Miss a day? The last 12 days stay open THE PACER Set the result you want to beat, a time or a number of reps: your own record, a competitor's result, or a target rank. The pacer shows where you should be at every moment, so you push from the first rep to the last. Voice cues and a bell keep your eyes off the screen. LIVE HEART RATE Connect a Bluetooth chest strap or a watch that broadcasts heart rate. Your heart rate shows in the color of your zone, with percent of max. Zones are set from your own maximum heart rate. After the workout, see your heart-rate graph and how fast your heart rate recovers. COMPETITORS AND LEADERBOARDS Add competitors and see their results ranked with yours on every workout. Get an alert when a competitor trains. Leaderboards for PhyzioLevel, workouts, calories and PhyzTest, by age and gender. ONE FITNESS SCORE PhyzioLevel ranks you on Intervals, Lactic Loading and Endurance workouts as a percentile against other athletes. It rises as your results improve, which is a measure of fitness. Dashboards chart it alongside intensity, calories, weight and resting heart rate. MY RUNS Track runs on your days off: GPS distance, mile splits, pace, heart-rate graph, recovery and heart-rate drift, with a runs leaderboard. TRAIN YOUR WAY Not ready for the PHYZWOD? Beginner and intermediate levels, no-equipment workouts, and build-your-own workouts. PHYZTEST measures your mile, push-ups, sit-ups, squats and burpees so you can see progress. HEART-RATE MONITOR OPTIONAL Everything works without one. Heart-rate features need a Bluetooth chest strap or a broadcasting watch. Apple Health access is optional. SUBSCRIPTION New members get a 30-day free trial with no card required. After the trial, one workout each week stays free. Full access is an auto-renewing subscription: $12.99 per month or $99.99 per year. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. Phyzseek is for adults 18 and over. High-intensity exercise is demanding; check with your doctor before starting. Individual results vary. Terms of Service: https://prod.phyzseek.com/terms Privacy Policy: https://prod.phyzseek.com/privacy Support: support@phyzseek.com
Screenshots
Verdict
The clearest difference is monetization model: Intervals Pro at free with in-app purchases against Phyzseek's subscription. Intervals Pro also leads on ratings volume (14K vs 87) and rating (4.8 vs 4.4). On price, review sentiment, 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 Phyzseek sells 3 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.
Intervals Pro holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 87, so its average is the more settled of the two. Written reviews split almost evenly too, at 84% and 84% positive.
Intervals Pro ships an update every 8 days, Phyzseek every 5 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | Intervals Pro | Phyzseek |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (14K ratings) — better | 4.4 (87 ratings) |
| Positive reviews | 84.3% of reviews — better | 84.1% of reviews |
| Number of ratings | 14K — better | 87 |
| Update frequency | Every 8 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 17.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 65 MB | 11 MB |
| Age rating | 4+ | 17+ |
| Developer | Intervals, LLC | WellFit Holdings LLC |
Customer experience
Intervals Pro
Phyzseek
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
Phyzseek
From 87 App Store ratingsWhat we love
- 👍 Great workouts
- 💪 Effective for fitness
- 🚀 Efficient workouts
- 📈 Tracks progress well
- 💡 Varied exercises
Room to improve
- 💸 Charged for free trial
- 💳 Subscription deducted early
- ❌ App not working
- 🚫 Login issues
- 👴 Not for older users
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
Phyzseek
Reported bugs
5 issues- App not working
- Cannot log in
- Login failed
- Forgot password not working
- Facebook login not accepted
Requested features
3 requests- Consider older users' fitness needs
- Clarify free trial terms
- Improve login functionality
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
Phyzseek
- Phyzseek subscription$12.991 Month
- Phyzseek subscription$99.991 Year
- Workout Stats until midnight$0.99
Questions
Is Intervals Pro free?
Is Phyzseek free?
Which has better reviews, Intervals Pro or Phyzseek?
Do Intervals Pro or Phyzseek have ads?
Which is updated more often, Intervals Pro or Phyzseek?
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