Comparison

UltraTimer vs Intervals Pro

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

Head to head
About

UltraTimer

This app offers a fully programmable and customizable interval timer for various activities. Set single or multiple timers with custom alarm sounds and visual feedback. Share and exchange timers with a community of users.

Highlights
  • Fully programmable interval timer
  • Customizable alarm sounds
  • Background color customization
  • Timer Groups for sequential timing
  • Community Timer Exchange
  • Custom sound recording
  • Timer sharing via email/clipboard
Features
Read full description

- Reviews - "UltraTimer by Plain and Simple Software is an ideal tool if you want to use your iPhone or iPod touch to keep you on track... UltraTimer is a simple but valuable tool for anyone who requires a flexible, hands-free event timer." - by Kyle Bailey, Macworld.com "Ultratimer: a must-have for interval training. ... Of the timers that I've tested, UltraTimer is my favorite. Its combination of ease-of-use and functionality make it the benchmark fitness timer app." - by Sang Tang, tuaw.com "So I purchased the UltraTimer app from the AppStore on my iPhone. It was the only purchased app I have that was worth it!" - by Casey, rawandfit.com "...the other thing that I have come to love is my Ultratimer application on my iPod... the Ultratimer is a step beyond." - by Jennifer, oncearoundvenus.blogspot.com "UltraTimer iPhone App Is EXACTLY What I’ve Been Looking For. ... I was worried that it might be difficult to use, but I found it incredibly easy and I was running with a program that only took me about five minutes to program, and that included recording the voice prompts." - by Laura Moncur, starling-fitness.com ----------------------------------- - Description - UltraTimer is the original fully-programmable and customizable interval timer in the AppStore. As a result, it is the most refined and feature-rich interval timer today! UltraTimer is an easy and convenient way of timing any activity or series of activities. You can set a single timer or multiple timers, each including series of count-down intervals that run back-to-back. Each interval can be customized to play a different alarm sound from the included library, as well as change the background color for visual feedback. It is easy to set up intervals for any activity: training (martial arts, boxing, mma, circuit training, interval training, Crossfit, HIIT / HIT, yoga, meditation, exercise, workout, cycling, running, etc), time management for switching between multiple projects, or anything else you can think of. For a complete workout, you can set up a Timer Group which will play individual timers back to back. Start out with your favorite Warm Up timer, then run through your favorite Training timer, and end with a Stretching timer. UltraTrainer will run you through your full workout automatically. The included sound library comes with a wide variety of reminder sounds suitable for relaxing timers, high intensity activities, and everything in between. Custom sounds can also be recorded via the microphone; you are not limited to the included sound library. Exclusive to our products, users can browse the Timer Exchange, a community where people freely exchange timers. Search, browse, and download timers that other users have uploaded. If you want, you can upload your own timers to share with others. If a friend also owns UltraTimer, you can exchange timers via e-mail or the clipboard to use other methods. Using UltraTimer with music playing is not a problem. You can begin playing music on the timer screen, pause it, or skip to the next track. Just a few features in UltraTimer: - Timer Exchange community - Runs in the background - Copy/Paste Intervals and Actions - Delayed start time - Over 70 included sounds - Record your own sounds - Large countdown timer display - iPod music playback control lets you pause/play the current track or move to the next track from the countdown timer screen - Pause the timer to temporarily halt the activity - Timer state is saved if it is interrupted - Still runs if screen is locked - Intuitive setup If you're looking for an App that coaches you as you train, check out "UltraTrainer."

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

Screenshots

UltraTimer4 screens
Intervals Pro4 screens

Verdict

The call

The clearest difference is price: Intervals Pro at Free against UltraTimer's $1.99. Intervals Pro also leads on rating (4.8 vs 4.2) and review sentiment (84% vs 57%). UltraTimer's advantage is in-app purchases (none vs 8) and iOS requirement (8.0 vs 17.5). On ads and device support 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

Intervals Pro is free to download; UltraTimer costs $1.99 up front. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month. UltraTimer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Intervals Pro holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 57% of UltraTimer's written reviews are positive against 84% of Intervals Pro's.

UpkeepUpdate frequency

UltraTimer ships an update monthly, Intervals Pro every 8 days. Both last shipped on October 14, 2026.

Scorecard8 real differences · 2 level
UltraTimer versus Intervals Pro: the parameters behind the verdict, then further details
ParameterUltraTimerIntervals Pro
Price$1.99Free — better
Rating4.2 (12 ratings)4.8 (14K ratings) — better
Positive reviews57.1% of reviews84.4% of reviews — better
Number of ratings1214K — better
Update frequencyMonthlyEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS8.0 — better17.5
Further details — not scored
Size21 MB69 MB
Age rating4+4+
DeveloperPlain and Simple SoftwareIntervals, LLC

Customer experience

UltraTimer

All ratings12 ratings
Positive75.0%
Neutral8.3%
Negative16.7%
Written reviews126 reviews
Positive57.1%
Neutral11.1%
Negative31.7%

Intervals Pro

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

User reviews

UltraTimer

From 12 App Store ratings

What we love

  • ⭐ Best workout timer
  • 👍 Highly customizable
  • 🚀 Works great on latest devices
  • 💪 Perfect for fitness routines
  • 🎨 Visually appealing interface

Room to improve

  • 🐛 Compatibility issues with older devices
  • 🔍 Layout not functioning properly on some phones
  • 🔇 Sound issues after updates
  • 💻 Crashes and bugs after recent updates
  • 🔋 Drains battery when screen is on

Intervals Pro

From 14K App Store ratings

What 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

Bugs and requests

UltraTimer

Reported bugs

5 issues
  • Cannot modify interval times after latest update
  • Timers get replaced with incorrect values when saved
  • Naming/renaming of timers and groups not working
  • Frequent crashes when trying to copy, paste or delete timers
  • Sound not playing consistently during workouts

Requested features

5 requests
  • Add option to pause/resume individual intervals
  • Implement a countdown timer before workout starts
  • Allow importing/exporting of custom timers
  • Provide more sound options and ability to use own sounds
  • Add screen lock feature to prevent accidental taps

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

In-app purchases

None

UltraTimer

No 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

Questions

Is UltraTimer free?
UltraTimer costs $1.99, with no in-app purchases.
Is Intervals Pro free?
Intervals Pro is free to download, with in-app purchases available.
Which has better reviews, UltraTimer or Intervals Pro?
Intervals Pro is rated higher. UltraTimer averages 4.2 out of 5 from 12 ratings, while Intervals Pro averages 4.8 from 14K ratings.
Do UltraTimer or Intervals Pro have ads?
Neither UltraTimer nor Intervals Pro shows ads.
Which is updated more often, UltraTimer or Intervals Pro?
UltraTimer ships an update monthly, and Intervals Pro every 8 days. Most recently, UltraTimer was updated on October 14, 2026 and Intervals Pro on October 14, 2026.

Other comparisons