Comparison

Fit4Kid vs Interval Timer

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

Head to head
About

Fit4Kid

This app helps children learn to tell time through interactive games and features. It tracks activity like walking distance and sleep quality, with a durable, kid-friendly design. Integrates with iOS Health App.

Highlights
  • Time telling games
  • Activity tracking (walking, sleep)
  • Customizable watch faces
  • Durable, water-resistant design
  • iOS Health App integration
Features
Read full description

From tracking walking distance and monitoring the quality of your child’s sleep, to the built-in game, changeable watch face designs and much more, your little one will have endless fun while learning to tell the time. With a lightweight, water-resistant design and 1.3” TFT display that kids can easily navigate, this durable smart watch is the perfect accessory to keep up with on-the-go kids. Integrates with iOS Health App.

About

Interval Timer

This app provides a customizable interval timer for various training routines, including HIIT and Tabata. Easily set up custom workouts, track your progress, and stay motivated with visual cues and audio notifications. It's suitable for a wide range of activities from fitness to productivity.

Highlights
  • Customizable workout setup
  • Progress tracking with calendar
  • Saveable custom presets
  • Color-coded notifications
  • Listen to music/audiobooks
  • Large, full-screen display
  • Widget for easy access
Features
Read full description

Interval Timer: Tabata and HIIT is a customizable timer for sports. Use it for High-intensity interval training and workout. It's a free sports interval timer app that makes it easy to create your custom training routine. Use it as your timer for training or exercise. This sports timer is great for crossfit, fitness and running. The sports timer will also be useful for various activities such as crossfit, jogging, boxing,circuit training,breathing exercises and yoga. You can use this circuit timer as a productivity timer to focus on your work tasks. Key features: Setup workout Tracking your progress Customizable presets Notifications & colors Motivation Listening music or books Huge digits Widget SETUP WORKOUT Set up, edit and save your own workouts with the customizable feature. Add as many intervals as you like. You can add a 10 second rest period and a 20 second work period, as well as a 5 second interval between exercises. TRACKING PROGRESS Track your workouts with a Calendar. Plan and track events, and get notified when you have a training scheduled. With this feature, you will not miss a single workout and will keep track of your progress. CUSTOMIZABLE PRESETS Save your workouts in the presets section. It's also possible to create your own custom intervals. You can add an unlimited number of presets. NOTIFICATIONS & COLORS Each training phase is easy to distinguish by a different color and is initiated by an individually adjustable signal (sound, vibration, voice) MOTIVATION Each completed exercise motivates you to achieve higher goals. Enjoy your training and achieve your fitness goals with the interval timer. LISTENING MUSIC Listen to motivational audiobooks or your favorite music and get inspired and energized. Full screen color coded display is easy to read from a distance. Widget helps you train without being distracted by the constant unlocking of your phone. Interval Timer: Tabata and HIIT is an easy to use sports workout timer for your daily fitness training at home, at the gym or everywhere else.

Screenshots

Fit4Kid4 screens
Interval Timer4 screens

Verdict

The call

The clearest difference is review sentiment: Interval Timer at 97% against Fit4Kid's 35%. Interval Timer also leads on rating (4.9 vs 4.0) and ratings volume (389 vs 1). Fit4Kid's advantage is in-app purchases (none vs 12) and ads (none vs shown). On price, update cadence 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. Interval Timer sells 12 in-app purchases, starting at $2.09 per month. Fit4Kid asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Interval Timer holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: Interval Timer has 389 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 35% of Fit4Kid's written reviews are positive against 97% of Interval Timer's.

UpkeepUpdate frequency

Fit4Kid ships an update every 2 months, Interval Timer monthly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard7 real differences · 3 level
Fit4Kid versus Interval Timer: the parameters behind the verdict, then further details
ParameterFit4KidInterval Timer
PriceFreeFree
Rating4.0 (1 ratings)4.9 (389 ratings) — better
Positive reviews35.0% of reviews96.6% of reviews — better
Number of ratings1389 — better
Update frequencyEvery 2 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS13.0 — better15.0
Further details — not scored
Size230 MB112 MB
Age rating4+4+
DeveloperSynergy Technologies LimitedSimpleInnovation LLC

Customer experience

Fit4Kid

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews20 reviews
Positive35.0%
Neutral10.0%
Negative55.0%

Interval Timer

All ratings388 ratings
Positive99.5%
Neutral0.3%
Negative0.3%
Written reviews321 reviews
Positive96.6%
Neutral0.9%
Negative2.5%

Bugs and requests

Fit4Kid

Not enough reviews yet to summarise bugs or requests.

Interval Timer

Reported bugs

2 issues
  • Occasional app crashes
  • Compatibility issues with older devices

Requested features

3 requests
  • More pre-designed workout routines
  • Ability to name and customize exercises
  • Option to adjust countdown time between intervals

In-app purchases

None

Fit4Kid

No in-app purchases

12 purchases

Interval Timer

Subscriptions8
  • Timer PRO for 1 month: 30% OFF7 Days trial$2.091 Month
  • Timer PRO for 1 month: 25% OFF7 Days trial$2.291 Month
  • Interval Timer PRO for 1 month$2.991 Month
Show 5 more
  • Interval Timer PRO for 1 month7 Days trial$2.991 Month
  • Interval Timer PRO - 30% OFF7 Days trial$15.001 Year
  • Interval Timer PRO - 25% OFF7 Days trial$16.491 Year
  • Interval Timer PRO for 1 year$21.991 Year
  • Tabata Timer PRO for 1 year7 Days trial$21.991 Year
One-time4
  • Interval Timer - no Ads$2.99
  • HIIT Timer PRO Forever 30% OFF$27.99
  • HIIT Timer PRO Forever 25% OFF$29.99
Show 1 more
  • Exercise Timer PRO Forever$39.99

Questions

Is Fit4Kid free?
Fit4Kid is free to download, with no in-app purchases.
Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Which has better reviews, Fit4Kid or Interval Timer?
Interval Timer is rated higher. Fit4Kid averages 4.0 out of 5 from 1 ratings, while Interval Timer averages 4.9 from 389 ratings.
Do Fit4Kid or Interval Timer have ads?
Interval Timer shows ads; Fit4Kid does not.
Which is updated more often, Fit4Kid or Interval Timer?
Fit4Kid ships an update every 2 months, and Interval Timer monthly. Most recently, Fit4Kid was updated on October 24, 2026 and Interval Timer on October 27, 2026.

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