Comparison

Gym Timer vs Simple Interval Workout Timer

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

Head to head
About

Gym Timer

This app helps you track gym sessions and manage rest times between sets. It's designed for use on a smartwatch, allowing you to leave your phone behind. The app alerts you when it's time to train again, ensuring your workout flows smoothly.

Highlights
  • Track gym sessions
  • Time rest periods between sets
  • Smartwatch optimized
  • Phone-free gym experience
  • Alerts for training intervals
  • HealthKit integration
Features
Read full description

Gym Timer helps you tracking your gym sessions and timing rest time. - You can leave your smartphone in the locker room: An app designed from the concept of the Apple Watch's app to give you the best mobility in the gym, without the need to lug around the smartphone. It's all on your wrist. With CareKit and HealthKit integration, your workout will never be interrupted if your Apple Watch goes into standby mode. - It does everything: With Gym Timer, you just set the number of sets and the rest time between one set and the other, then you just need to start the timer at the end of each set. When is time to start to train again, it will alert you. Follow us on our social media to be the first to know about new features we're developing, to get in touch with our community and give us a feedback. Facebook: https://www.facebook.com/gymtimer/ Instagram: @gym_timer Twitter: @gym_timer Gym Timer uses Health Kit for some functionalities like staying active while your watch screen is off.

About

Simple Interval Workout Timer

This app provides a simple, intuitive timer for various interval training methods like Tabata, HIIT, and EMOM. It allows users to save unlimited custom workouts for free, making fitness routines more efficient and accessible.

Highlights
  • Interval training timer
  • Supports Tabata, HIIT, EMOM
  • Save unlimited workouts
  • Minimalistic UI
  • Readable from a distance
  • Ad-free experience
Features
Read full description

If you were searching for the timer app for your Tabata, hit, HIIT, emom, you name it - any interval or simply timed training, then that’s the one! Forever free and free from annoying ads. Simple, minimalistic, intuitive, polished, and smoothly animated user interface. Quick to set up and easily readable from a further distance. Make your interval workout a breeze with this app that allows you to save limitless workouts for free. Interval training is a great tool for burning a lot of calories in a short period of time and they help a lot with your cardiovascular health. Let’s get fit together!

Screenshots

Gym Timer4 screens
Simple Interval Workout Timer4 screens

Verdict

The call

The clearest difference is review sentiment: Simple Interval Workout Timer at 100% against Gym Timer's 55%. Simple Interval Workout Timer also leads on rating (4.7 vs 4.5) and iOS requirement (9.0 vs 13.0). Gym Timer's advantage is update cadence (every 3 weeks vs every 4 months) and ratings volume (460 vs 7). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Simple Interval Workout Timer holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Gym Timer has 460 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 55% of Gym Timer's written reviews are positive against 100% of Simple Interval Workout Timer's.

UpkeepUpdate frequency

Gym Timer ships an update every 3 weeks, Simple Interval Workout Timer every 4 months. The most recent releases landed on September 20, 2026 and September 25, 2026 respectively.

Scorecard5 real differences · 5 level
Gym Timer versus Simple Interval Workout Timer: the parameters behind the verdict, then further details
ParameterGym TimerSimple Interval Workout Timer
PriceFreeFree
Rating4.5 (460 ratings)4.7 (7 ratings) — better
Positive reviews55.0% of reviews100.0% of reviews — better
Number of ratings460 — better7
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPod
Requires iOS13.09.0 — better
Further details — not scored
Size19 MB53 MB
Age rating4+4+
DeveloperGiuseppe FasanoArtur Fijal

Customer experience

Gym Timer

All ratings460 ratings
Positive86.1%
Neutral4.6%
Negative9.3%
Written reviews238 reviews
Positive55.0%
Neutral10.5%
Negative34.5%

Simple Interval Workout Timer

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Gym Timer

Reported bugs

4 issues
  • Timer resets unexpectedly
  • Set/rep count not updating correctly
  • Syncing issues with Apple Watch
  • Notifications not working as expected

Requested features

4 requests
  • Add option to track exercise time
  • Implement workout history/progress tracking
  • Provide Apple Watch complications
  • Offer paid ad-free version

Simple Interval Workout Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Gym Timer

No in-app purchases

None

Simple Interval Workout Timer

No in-app purchases

Questions

Is Gym Timer free?
Gym Timer is free to download, with no in-app purchases.
Is Simple Interval Workout Timer free?
Simple Interval Workout Timer is free to download, with no in-app purchases.
Which has better reviews, Gym Timer or Simple Interval Workout Timer?
Simple Interval Workout Timer is rated higher. Gym Timer averages 4.5 out of 5 from 460 ratings, while Simple Interval Workout Timer averages 4.7 from 7 ratings.
Do Gym Timer or Simple Interval Workout Timer have ads?
Neither Gym Timer nor Simple Interval Workout Timer shows ads.
Which is updated more often, Gym Timer or Simple Interval Workout Timer?
Gym Timer ships an update every 3 weeks, and Simple Interval Workout Timer every 4 months. Most recently, Gym Timer was updated on September 20, 2026 and Simple Interval Workout Timer on September 25, 2026.

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