Comparison

Gymboss Interval Timer vs RunIntervals

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

RunIntervals

Set custom interval timers with voice or tone alerts. This app seamlessly integrates with your existing audio and fitness apps, pausing or lowering music volume to ensure you never miss an alert.

Highlights
  • Customizable interval durations
  • Voice and tone alerts
  • Music volume lowering
  • Spoken audio pausing
  • Works with other apps
  • No user data collection
Features
Read full description

Just pick your interval durations and click GO! "Plays well with others," so if you have favorite apps for audio or fitness tracking it will work well alongside those. Audio voice alerts or tones will momentarily lower the volume of your music or briefly pause spoken audio just long enough to hear the alert, then let you get right back to listening! This app does not track or collect any user data.

Screenshots

Gymboss Interval Timer4 screens
RunIntervals2 screens

Verdict

The call

Gymboss Interval Timer and RunIntervals both sit at 4.7 stars, but that hides the real split: 91% of RunIntervals's written reviews are positive against 37% of Gymboss Interval Timer's. RunIntervals also leads on iOS requirement (11.3 vs 15.0). Gymboss Interval Timer's advantage is update cadence (every 5 weeks vs every 3 months) and ratings volume (840 vs 146). On price, rating, 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

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 RunIntervals 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 RunIntervals. That said, the two scores are not equally well evidenced: Gymboss Interval Timer has 840 ratings behind it against 146, so its average is the more settled of the two. Written reviews are what separate them: 37% of Gymboss Interval Timer's written reviews are positive against 91% of RunIntervals's.

UpkeepUpdate frequency

Gymboss Interval Timer ships an update every 5 weeks, RunIntervals every 3 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
Gymboss Interval Timer versus RunIntervals: the parameters behind the verdict, then further details
ParameterGymboss Interval TimerRunIntervals
PriceFreeFree
Rating4.7 (840 ratings) — better4.7 (146 ratings)
Positive reviews36.7% of reviews90.7% of reviews — better
Number of ratings840 — better146
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 iOS15.011.3 — better
Further details — not scored
Size23 MB26 MB
Age rating4+4+
DeveloperGymboss LLCRobotic Jam LLC

Customer experience

Gymboss Interval Timer

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

RunIntervals

All ratings123 ratings
Positive91.9%
Neutral2.4%
Negative5.7%
Written reviews129 reviews
Positive90.7%
Neutral3.1%
Negative6.2%

User reviews

Gymboss Interval Timer

From 840 App Store ratings

What we love

  • 🚀 Simple yet effective
  • 🚀 Perfect gym partner
  • 🚀 Grad App
  • 🚀 Great
  • 🚀 Simple easy to plan and workout

Room to improve

  • 🐛 Clear data
  • 🐛 Glitchy
  • 🐛 Another buggy update
  • 🐛 Landscape / portrait bugs
  • 🐛 Sagging under bugs

RunIntervals

From 146 App Store ratings

What we love

  • 🚀 Perfect app
  • 🚀 Great app
  • 🚀 Simple and effective
  • 🚀 Straightforward and easy to use
  • 🚀 Does exactly what it needs to

Room to improve

  • 🐛 Does not work
  • 🐛 Tones fail
  • 🐛 Alerts don't work
  • 🐛 Stops randomly
  • 🐛 No sound on watch

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

RunIntervals

Reported bugs

3 issues
  • Interval tones not working with podcast/music
  • Interval tones not working on Apple Watch
  • App randomly stops during workouts

Requested features

7 requests
  • Ability to swap run/walk intervals
  • Option to start with walking
  • Ability to set number of repeats
  • Vibration alerts
  • Longer interval options (up to 30/60/120 mins)
Show 2 more
  • Repeat feature for intervals
  • Total time limit for workout

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

RunIntervals

One-time2
  • Small Tip$0.99
  • Big Tip$2.99

Questions

Is Gymboss Interval Timer free?
Gymboss Interval Timer is free to download, with in-app purchases available.
Is RunIntervals free?
RunIntervals is free to download, with in-app purchases available.
Which has better reviews, Gymboss Interval Timer or RunIntervals?
Gymboss Interval Timer is rated higher. Gymboss Interval Timer averages 4.7 out of 5 from 840 ratings, while RunIntervals averages 4.7 from 146 ratings.
Do Gymboss Interval Timer or RunIntervals have ads?
Neither Gymboss Interval Timer nor RunIntervals shows ads.
Which is updated more often, Gymboss Interval Timer or RunIntervals?
Gymboss Interval Timer ships an update every 5 weeks, and RunIntervals every 3 months. Most recently, Gymboss Interval Timer was updated on November 6, 2026 and RunIntervals on November 2, 2026.

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