Comparison

Intervals Pro vs Ultra Intervals Workout Timer

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

Head to head
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

About

Ultra Intervals Workout Timer

Create and customize interval training routines with simple text input. This app guides you through workouts with spoken cues, sound alerts, and large visual displays, allowing you to focus on your exercise. It supports various training styles like HIIT and Tabata, and can even manage music playback during sessions.

Highlights
  • Create custom interval workouts using plain text
  • Spoken exercise names, times, and notifications
  • Customizable sound cues and visual displays
  • Support for HIIT, Tabata, and circuit training
  • Mix timed and non-timed workout sections
  • Music ducking for notifications
  • Pre-loaded sample workouts
Features
Read full description

Define basic interval timers and custom interval workouts with ease:  Write the workout as plain understandable text and save it, launch the timer and start exercising! As an example, basic 'Tabata' interval timer can be defined by just typing this text: 8x 00:20 Work hard! 00:10 Rest Type those three lines in the text editor, save the file and launch the timer, then do your workout assisted by big display texts, spoken audio, sound cues and more. 8 rounds of 20 seconds of work, 10 seconds rest! Same way you can define more complex workouts, with multiple interval sections consisting of any number of exercises. Check out the screenshots! Running, cycling, kettlebells,..., yoga: Ultra Intervals speaks the exercise names and custom notifications as you define, being capable of guiding you through a full workout with 'phone in your pocket' mode - just *listen* to the instructions and focus on the workout. No need to see the device screen at all. Ultra Timer supports 20+ languages (most languages supporting the iOS text-to-speech functionality are supported). Intervals, HIIT, Tabata, Circuit...equally easy to set up. Customise each workout separately: Choose if you want to have the interval names and notifications spoken or rather have the timer beep instead. Customise colours as you like, all the way to having each exercise step shown with a different colour. Mix timed and non-timed sections in one workout: Ultra Intervals can also guide you through your gym workout or weight training, timing just the breaks and rest periods acting as your set coach. Play music with your favourite music player. Ultra Intervals 'ducks' the music during spoken notifications and brings the volume back on ones audio cue has ended. ULTRA INTERVALS FEATURES: CREATE AND EDIT WORKOUTS WITH EASE Type your workouts in as text plain text, following just few super simple rules. Since the workouts are defined as text, they can be edited on a Mac or PC and imported from cloud services. SPEAKS EXERCISE NAMES, TIMES AND NOTIFICATIONS. AND IT BEEPS TOO. Speaks exercise names, times and custom notifications as you define (or you can turn speech off altogether). You can customize the notifications as you like. Choose between various 'beep' sounds or turn them off as well. SAMPLE WORKOUTS - USE AS SUCH OR AS TEMPLATES Comes with plenty of example workouts and timers which can be used as such or as templates for new ones. Copying a workout file can be done with one swipe & tap. MULTIPLE SECTIONS IN ONE WORKOUT You can define multiple interval sections in one workout. Again, super easily - see the App Store screenshots to get the idea how simple this is! CLEAR DISPLAYS READABLE FROM AFAR Large animated display of time, current and up-next workout steps. Big text you can truly read from afar. CUSTOM NOTIFICATIONS WITH 'TOKENS' Define custom notification messages spoken during the workout, use 'tokens' in the notifications, for example referring to name of the current or the next exercise, time of the next exercise, time remaining of current exercise, interval round number, heart rate and more. MIX TIMED AND NON-TIMED WORKOUT STEPS Following a simple rule (just add the '&' character in the exercise name!), you can make the timer pause automatically for a 'manual' step in your workout and then with one tap restart for the rest period. RUNS IN THE BACKGROUND You can lock the screen, put the phone in the pocket and do the workout guided by the spoken audio instructions. IMPORT, COPY, EXPORT WORKOUTS Straightforward one-step functionality for importing text files from the cloud, copying files and exporting to cloud, email and more. MUSIC Allows you to listen to music during the workout, lowers the music volume for spoken audio. CUSTOMIZABLE FEATURES (CAN BE SET FOR EACH WORKOUT SEPARATELY) For *example*: Language spoken, silent mode, speech/beeps in use, speech/beeps options, countdown time, HR monitor in use, colors and many many more!

Screenshots

Intervals Pro4 screens
Ultra Intervals Workout Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Ultra Intervals Workout Timer at none against Intervals Pro's 8. Ultra Intervals Workout Timer also leads on iOS requirement (13.0 vs 17.5). Intervals Pro's advantage is ratings volume (14K vs 4) and rating (4.8 vs 4.5). On price, review sentiment, update cadence and ads 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. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month. Ultra Intervals Workout Timer asks for nothing beyond the download.

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 4, so its average is the more settled of the two. Written reviews complicate that: 84% of Intervals Pro's written reviews are positive against 89% of Ultra Intervals Workout Timer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Intervals Pro ships an update every 8 days, Ultra Intervals Workout Timer every 6 days. The most recent releases landed on October 12, 2026 and September 19, 2026 respectively.

Scorecard5 real differences · 5 level
Intervals Pro versus Ultra Intervals Workout Timer: the parameters behind the verdict, then further details
ParameterIntervals ProUltra Intervals Workout Timer
PriceFreeFree
Rating4.8 (14K ratings) — better4.5 (4 ratings)
Positive reviews84.4% of reviews88.9% of reviews — better
Number of ratings14K — better4
Update frequencyEvery 8 daysEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.513.0 — better
Further details — not scored
Size69 MB9 MB
Age rating4+4+
DeveloperIntervals, LLCTapio Kuusisto

Customer experience

Intervals Pro

All ratings13,612 ratings
Positive95.1%
Neutral1.7%
Negative3.2%
Written reviews1,081 reviews
Positive84.4%
Neutral4.9%
Negative10.7%

Ultra Intervals Workout Timer

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews9 reviews
Positive88.9%
Neutral11.1%
Negative0.0%

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

Ultra Intervals Workout Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

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
None

Ultra Intervals Workout Timer

No in-app purchases

Questions

Is Intervals Pro free?
Intervals Pro is free to download, with in-app purchases available.
Is Ultra Intervals Workout Timer free?
Ultra Intervals Workout Timer is free to download, with no in-app purchases.
Which has better reviews, Intervals Pro or Ultra Intervals Workout Timer?
Intervals Pro is rated higher. Intervals Pro averages 4.8 out of 5 from 14K ratings, while Ultra Intervals Workout Timer averages 4.5 from 4 ratings.
Do Intervals Pro or Ultra Intervals Workout Timer have ads?
Neither Intervals Pro nor Ultra Intervals Workout Timer shows ads.
Which is updated more often, Intervals Pro or Ultra Intervals Workout Timer?
Intervals Pro ships an update every 8 days, and Ultra Intervals Workout Timer every 6 days. Most recently, Intervals Pro was updated on October 12, 2026 and Ultra Intervals Workout Timer on September 19, 2026.

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