Comparison

Fitsifu Timer vs Rest Timer

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

Head to head
About

Fitsifu Timer

This interval training app helps you achieve your fitness goals with a customizable timer. It supports various workout styles and provides audio alerts for seamless transitions. Premium features offer advanced customization and trainer-designed workouts.

Highlights
  • Customizable interval timer
  • Color-coded interval indicators
  • Audio alerts for interval changes
  • Works in background
  • Trainer-designed workout presets
  • Muscle recovery timer
  • Spotify integration
Read full description

The BEST workout timer app just got better! We’ve completely redesigned our interface from the ground up, giving it a fresh new look and features we’re sure you will love! Fitsifu Timer is a simple but powerful interval training app designed to make your exercise sessions seamless and efficient to keep you focused on achieving your fitness goals. Whatever your goal may be—gaining muscle mass, shaping and toning, losing weight, bodybuilding, or increasing stamina, this app will help you achieve it! Fitsifu Timer transforms your phone into your very own personal trainer, whether you are at the gym or at home. Fitsifu Timer is perfect for training styles like HiiT, Tabata, CrossFit, Callisthenics, Cardio, and any other interval exercise you can think of! The Fitsifu Timer advantage: • Simple and clear display that can be seen at a distance • Designed for both beginners and experienced users • Colour-coded interval indicators that are easy to identify • Circular indicators to track both current and overall workout time • Audio alerts during interval changes to keep you prepared • Works in the background so you can switch to other apps without interruption • Pause intervals midway and start over when needed • Interval timer preset for different workouts • Connect with Spotify for your ultimate workout soundtrack (Premium membership required) Premium subscription features: • Dynamic Timer — our most powerful interval timer mode yet, allows you to fully customise the duration for each and every interval. • Trainer Presets — using Dynamic Timer, we’ve included a list of full workouts designed by certified fitness trainers covering a wide range of styles, from HIIT, kickboxing, yoga and barre! • Muscle Timer — planning rest and recovery times correctly could potentially increase your fitness level even more, while keeping you from injuring or over-taxing your body. The Muscle Timer determines your rest times based on a number of factors such as training type, muscle group and exercise. It then determines the optimal rest time based on those factors, all set for you to get the most out of your workout! • Apple Watch app — Fitsifu Timer works with Apple Health to calculate calorie burn. • Save unlimited Interval, Dynamic and Muscle Timer presets in the cloud • Unlock all voices • Remove all ads — IMPORTANT INFORMATION The download and usage of Fitsifu Timer is free of charge. Get extra features with a Premium subscription, which is available for purchase in the app. If you decide to subscribe you will pay the price set for your country, as shown in the app, and payment will be charged through your iTunes account at confirmation of purchase. Subscription renews automatically unless cancelled at least 24 hours prior to the end of the subscription period. There is no increase in price when renewing. Subscriptions can be managed and auto-renewal turned off in Account Settings in iTunes after purchase. Once purchased, refunds will not be provided for any unused portion of the term. Terms of use: https://fitsifu.com/timer/terms-of-use Privacy policy: https://fitsifu.com/timer/privacy-policy ABOUT ALPHAPOD Alphapod is a mobile-first digital product studio, with a mission to enable businesses and creators to change the world through technology. We’ve come a long way since our founding in 2009—from building our first mobile app for the iPhone 3GS to working with some of the world’s most recognisable brands today. Discover more of what we do on our website http://alphapod.com or get in touch with us at hello@alphapod.com.

About

Rest Timer

This app provides a simple countdown timer for rest periods during workouts. It features customizable sounds, notification-based restarts, and dynamic display support. Easily manage your workout intervals without interrupting your music or unlocking your phone.

Highlights
  • One-tap timer start
  • Customizable rest periods
  • Plays music during countdown
  • Restart from notification
  • Dynamic Island and Live Activity support
  • Adjust timer while running
Features
Read full description

Free app. No ads. Start the timer with one tap. Keeps playing music after a short alarm sound. Restart the timer from the notification. Dynamic Island and Live Activity supported. This is the simplest countdown timer out there, with a set of convenience features you can't find in any other similar app. It's primarily used for timing rest periods during a strength training workout. It works great in the gym, at home, and outdoors. Let your phone notify you when it's time to start the next set or exercise. *** Instructions *** Start the countdown by pressing one of the 9 timer buttons. Reset it if you don't need it anymore. Press'n'hold the button to change its timer duration. === Important! === Please make sure to allow the app to send you notifications, otherwise, you might not hear sound warnings, and it won't work with the screen locked. *** What makes this app better than the others? *** You can change the timer duration while the timer is already running. The app recalculates the remaining time and keeps the time that has already passed. Sometimes there is not enough energy in the tank, and you need an extra minute to rest. Or you started the wrong timer and want to change it to the correct one. The app uses carefully selected custom sounds that play nicely with your workout music. They are noticeable enough not to miss them but still easy on your ears. A gentle sound warning signals you to start preparing for the next set (for time intervals of 30 seconds and higher). Another more distinct sound follows when the time is up. When you're done with the set, you can restart the timer from the notification without unlocking the screen! No need to think about how long your rest time is after each set. *** FAQ *** Q. I can't hear the sound notifications. What's wrong? A. Please make sure that you have allowed the app to send you notifications. Go to Settings App -> Notifications -> find WaitWaitGo! -> Allow notifications and Sounds need to be On. Also, make sure that the silent switch on the phone is off, and if you have any iOS focus modes active, make sure they allow notifications from WaitWaitGo!. As a last resort, go to Settings -> Sounds and make sure that the Ringer And Alerts volume slider is set to some higher value.

Screenshots

Fitsifu Timer4 screens
Rest Timer3 screens

Verdict

The call

Fitsifu Timer and Rest Timer both sit at 4.8 stars, but that hides the real split: 100% of Rest Timer's written reviews are positive against 63% of Fitsifu Timer's. Rest Timer also leads on in-app purchases (none vs 2). Fitsifu Timer's advantage is update cadence (every 5 days vs every 2 months) and ratings volume (611 vs 11). On price, rating, 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

Both are free to download. Fitsifu Timer sells 2 in-app purchases, starting at $1.99 per month. Rest Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Fitsifu Timer against 4.9 for Rest Timer. That said, the two scores are not equally well evidenced: Fitsifu Timer has 611 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 63% of Fitsifu Timer's written reviews are positive against 100% of Rest Timer's.

UpkeepUpdate frequency

Fitsifu Timer ships an update every 5 days, Rest Timer every 2 months. The most recent releases landed on September 19, 2026 and September 26, 2026 respectively.

Scorecard5 real differences · 5 level
Fitsifu Timer versus Rest Timer: the parameters behind the verdict, then further details
ParameterFitsifu TimerRest Timer
PriceFreeFree
Rating4.8 (611 ratings)4.9 (11 ratings) — better
Positive reviews62.6% of reviews100.0% of reviews — better
Number of ratings611 — better11
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size58 MB20 MB
Age rating4+4+
DeveloperALPHAPOD X SDN. BHD.Srdan Stanic

Customer experience

Fitsifu Timer

All ratings611 ratings
Positive94.9%
Neutral2.6%
Negative2.5%
Written reviews91 reviews
Positive62.6%
Neutral3.3%
Negative34.1%

Rest Timer

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Fitsifu Timer

Reported bugs

4 issues
  • Every workout timing end with an extra rest time
  • Unable to save custom timers
  • App goes to random other promo apps, doesn't not stay in timer but goes to random sites, can't save timer
  • Won't open, crashes on iPhone

Requested features

8 requests
  • Round rest
  • custom version for the apple watch
  • language selection
  • ability to make their own name for the muscle timers
  • lockscreen shortcut
Show 3 more
  • set number included so you could do something like 3 sets of 5 rounds with a (user definable) 2 min break in between sets
  • access the music already on my phone
  • work with Apple Music

Rest Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Fitsifu Timer

Subscriptions1
  • Premium Monthly Subscription$1.991 Month
One-time1
  • PRO Version$4.99
None

Rest Timer

No in-app purchases

Questions

Is Fitsifu Timer free?
Fitsifu Timer is free to download, with in-app purchases available.
Is Rest Timer free?
Rest Timer is free to download, with no in-app purchases.
Which has better reviews, Fitsifu Timer or Rest Timer?
Rest Timer is rated higher. Fitsifu Timer averages 4.8 out of 5 from 611 ratings, while Rest Timer averages 4.9 from 11 ratings.
Do Fitsifu Timer or Rest Timer have ads?
Neither Fitsifu Timer nor Rest Timer shows ads.
Which is updated more often, Fitsifu Timer or Rest Timer?
Fitsifu Timer ships an update every 5 days, and Rest Timer every 2 months. Most recently, Fitsifu Timer was updated on September 19, 2026 and Rest Timer on September 26, 2026.

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