Comparison

Gymboss Interval Timer vs RUN interval

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

Head to head
About

Gymboss Interval Timer

This app provides a customizable interval timer for various workouts, allowing users to set single or multiple work and rest periods. It offers extensive customization options for alarms, program saving, and display, ensuring a tailored timing experience for any fitness routine.

Highlights
  • Programmable interval timer
  • Unlimited intervals and rounds
  • Save and manage unlimited programs
  • Visual, audible, and vibrate alarms
  • Music access and dimming
  • Customizable display and background
Features
Read full description

The Gymboss Interval Timer app is a programmable interval timer perfect for any workout where timing is needed to time work and/or rest periods. You can time a single time interval, or multiple time intervals, and repeat them as many times as you wish. Perfect for running, HIIT, tabata, crossfit, home workouts, mma, boxing, weight lifting, stretching, or any other workout that requires timing. This app incorporates all of the recommendations we have received over the years from our users to bring you the best app possible. Thank you for your input!!! Customizable Features: - save programs to your iCloud Drive account - unlimited intervals - up to 99 rounds/repeats - unlimited saved programs - music access directly from the app - music dims for alarm - multiple alarm sounds - visual, audible, and vibrate alarm options - social sharing options - prevent sleep feature - screen lock - customizable, moving background colors - large, easy to read display - landscape mode option - set different alarms for each interval - change the end of program alarm - label activity names for each interval to be displayed - built in stopwatch - ability to make rounds box bigger or smaller - copy an entire program option Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

RUN interval

This app simplifies interval and Fartlek running by allowing you to set custom targets for time or distance during hard, easy, and rest efforts. It offers detailed post-run summaries, audio and visual feedback, and an Apple Watch app for enhanced training.

Highlights
  • Customizable interval sessions
  • Time and distance targets
  • Distance Goal option
  • Audio and visual feedback
  • Detailed run summaries
  • Apple Watch app
  • Strava sharing
Features
Read full description

Easily set up and record your Interval and Fartlek running sessions. With the flexibility of using time and/or distance as interval targets for your "Hard", "Easy" and "Rest" efforts. The simple but highly configurable interface on your phone and watch will have you running sooner. Now with a Distance Goal option for your session. Along with great audio and visual feedback, detailed post-run summary, share your runs to Strava, and a full-featured Apple Watch app. You can also record your regular runs with voice-over calling out distance and pace feedback. Key Features: • Easily create flexible custom interval sessions. • Utilize three effort targets "Hard", "Easy" and "Rest" in each set, targeting time or distance (meters or miles). • You can "Skip" any of the three efforts to create flexible sets, like building a progressive intervals session. • NEW: Set a Distance Goal for your session, that repeats the sets from the start until the distance has been reached. • Set a Warm-Up and Warm-Down timer or distance around your session. • Clear and easily glanceable visuals and audio prompts, including vibrations. • Voice-over prompts to save you from looking at the screen, great for iPhone or headphone users. • Voice-over prompts include the upcoming intervals effort and time/distance amount, and your last intervals average pace and heart rate. • Full-featured Apple Watch App! • Heart Rate Zones! (see description below) • Indoor Mode, no GPS, for treadmill running. • Sound Mode, for normal, discrete or silent audio prompts on your watch. • Vibration feedback on both the phone and watch. • Detailed run summary, showing pace for hard and easy efforts. • The run summary also includes interval breakdown, distance breakdown and heart rate details. • Play music or podcasts while running and still hear the audio prompts. • Sharing. Share a summary photo with your friends. • Private data. We don’t send any of your data to a server or share it with anyone. Session Types: • Normal Run – Record a normal run, long or short. • Record Intervals – If you run with a group or do an undefined session, then use the Record Interval option. It allows you to manually change between "Hard" and "Easy" reps, allowing you to record your session. • Custom Intervals – Our fully flexible intervals that allow you to use time and/or distance for the efforts. Add multiple intervals sets together to create the session you want. Sharing: From the summary screen, you can share your runs with friends or across social media. If you want to share directly with friends or across other social media, you can share a summary image with the details of your run. Heart Rate Zones: (Apple Watch Only) Zones are displayed as grouped percentages of your maximum heart rate. Giving you an indication of your current work rate based on your current heart rate. Just enter your maximum workout heart rate into our Settings screen and they will display on your Watch the next time you run. Zone 1: Very Light Effort 50-60% (Gray) Zone 2: Light Effort 60-70% (Blue) Zone 3: Moderate Effort 70-80% (Green) Zone 4: Hard Effort 80-90% (Yellow) Zone 5: Maximum Effort 90-100% (Red) Privacy: We don’t want to know where you have run, that's for you to worry about. We don’t send any of your data to a server or share it with anyone you don't want too. We keep your running records safe in Apple Health so you have control. Apple Heath gives you the control over who accesses your data. We only write and read the data we record from your running. Feedback: And because we don't send any data to a server, we need you to send us feedback and suggestions. Hit the Support link below or visit our website to contact us.

Screenshots

Gymboss Interval Timer4 screens
RUN interval4 screens

Verdict

The call

Gymboss Interval Timer and RUN interval both sit at 4.7 stars, but that hides the real split: 77% of RUN interval's written reviews are positive against 37% of Gymboss Interval Timer's. Gymboss Interval Timer's advantage is update cadence (every 5 weeks vs every 3 months). On price, rating, ratings volume 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. Gymboss Interval Timer sells 3 in-app purchases, starting at $1.99 per year and RUN interval sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Gymboss Interval Timer against 4.7 for RUN interval. Both are backed by a comparable volume of ratings — 797 and 1K respectively. Written reviews are what separate them: 37% of Gymboss Interval Timer's written reviews are positive against 77% of RUN interval's.

UpkeepUpdate frequency

Gymboss Interval Timer ships an update every 5 weeks, RUN interval every 3 months. Both last shipped on October 12, 2026.

Scorecard2 real differences · 8 level
Gymboss Interval Timer versus RUN interval: the parameters behind the verdict, then further details
ParameterGymboss Interval TimerRUN interval
PriceFreeFree
Rating4.7 (797 ratings)4.7 (1K ratings)
Positive reviews36.7% of reviews77.5% of reviews — better
Number of ratings7971K — better
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS15.0 — better15.6
Further details — not scored
Size23 MB34 MB
Age rating4+4+
DeveloperGymboss LLCCAN YOU HEAR ME SOFTWARE

Customer experience

Gymboss Interval Timer

All ratings797 ratings
Positive91.7%
Neutral2.1%
Negative6.1%
Written reviews270 reviews
Positive36.7%
Neutral13.3%
Negative50.0%

RUN interval

All ratings1,003 ratings
Positive94.3%
Neutral1.6%
Negative4.1%
Written reviews191 reviews
Positive77.5%
Neutral5.2%
Negative17.3%

Bugs and requests

Gymboss Interval Timer

Reported bugs

8 issues
  • Timer no longer beeps when screen is locked or app is in background
  • Intervals disappear or get shuffled after updates
  • Unable to save new workouts
  • All workout sounds have gone
  • Crashes when trying to edit intervals
Show 3 more
  • Reordering of saved workouts
  • Ads cover the timer screen
  • Timer stops working when screen is locked or app is in background

Requested features

9 requests
  • Verbal prompts like a countdown "3-2-1 Go!" and "3-2-1 Rest"
  • Ability to lock the screen
  • Option to see what's coming next
  • Workout block of 60/30/30 rather than just high and low
  • Ability to start from partway through the sequence
Show 4 more
  • Back and forward button to skip to the wanted element or go back during the sequence
  • Different alarm sounds for each interval/color
  • Countdown, CountUp feature
  • Dark mode option

RUN interval

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Gymboss Interval Timer

Subscriptions1
  • Gymboss Premium Yearly$1.991 Year
One-time2
  • Remove Ads$0.99
  • Sound and Color Bundle$0.99
2 purchases

RUN interval

One-time2
  • The full RUN interval$1.99
  • The full RUN interval$3.99

Questions

Is Gymboss Interval Timer free?
Gymboss Interval Timer is free to download, with in-app purchases available.
Is RUN interval free?
RUN interval is free to download, with in-app purchases available.
Which has better reviews, Gymboss Interval Timer or RUN interval?
Gymboss Interval Timer and RUN interval are both rated 4.7 out of 5 on the App Store, from 797 and 1K ratings respectively.
Do Gymboss Interval Timer or RUN interval have ads?
Neither Gymboss Interval Timer nor RUN interval shows ads.
Which is updated more often, Gymboss Interval Timer or RUN interval?
Gymboss Interval Timer ships an update every 5 weeks, and RUN interval every 3 months. Most recently, Gymboss Interval Timer was updated on October 12, 2026 and RUN interval on October 12, 2026.

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