Comparison

Tabata Timer and HIIT Timer vs Kronos Studio

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

Head to head
About

Tabata Timer and HIIT Timer

This interval training app automates your exercise, rest, and cooldown periods for various workouts like Tabata, HIIT, and sprints. It offers customizable intervals, voice guidance, and music integration to enhance focus and workout efficiency. Track your progress with Apple Health integration.

Highlights
  • Automated exercise and rest intervals
  • Customizable workout presets
  • Voice and beep guidance
  • Music integration
  • Apple Health support
  • Color-coded display
Features
Read full description

Tabata Stopwatch Pro is the ultimate Tabata Interval Timer that works for 'all' your interval training needs. You can use it with Tabata, HIIT, kettlebells, bodyweight exercises, interval running, sprints, etc. Tabata Stopwatch Pro is a universal (both iPhone and iPad) feature packed interval timer for people who follow the Tabata training method. The main thing the Tabata app will aid you with is automating your exercise, rest, cooldown and other intervals. As simple as this sounds, it has a profound effect on your workout. You will be able to concentrate much better, won’t have to constantly count and honestly the whole workout just goes by faster. Try it with your Tabata, HIIT, kettlebells, bodyweight exercises, interval running, sprints, and other workouts. Designed with both beginners and advanced users in mind Tabata Stopwatch Pro comes ready to use with basic Tabata already set up for you. As you gain more experience you can customize all intervals to match your pace. You may even create and store your own interval presets to quickly change to different workouts. The app is loaded with beeps that help identify what part of a workout you are in, interval beeps for example tell you when a new interval has started. Tabata Stopwatch Pro also has voice support that announces intervals to further help you focus on your workout. Oh and what would an exercise app be without music, select your favorite tracks and enjoy that workout. The Apple Health app is supported and the Tabata app will write your workout times, calorie burned estimates and heart rates (needs a heart rate monitor and Pro purchase) after each workout. By far the best app for Tabata training available for your iPhone and iPad, this Tabata Timer app is well over a decade old with millions of downloads worldwide. Try out TSP you might really like it. Doesn't Include: - The free version limits the number of workouts every 7 days. - Self support with FAQs available on the help page linked below. Includes: + Pro grade Tabata timer. + Ready to use out of the box. Classic Tabata already set up for you. + Simple to use, just push play. + Works on both iPhone and iPad. + Comes with 2 beautiful themes. + Color coded display visible from afar. Colors represent the amount of energy you are using in an interval. + Customize initial countdown and warmup time. + Customize exercise, rest, recovery and cooldown intervals. + Adjust the number of sets and cycles to match your pace. + Jump between intervals in the middle of a workout as needed. + Build presets to support your multiple interval training needs (Pro purchase needed). + Pause your workouts if needed. + Works with the screen locked and in your pocket. + Interval beeps for each individual interval. Need a separate beep to mark when it's time to rest, no problem. + Interval vibration. + Continuous beeps. + Three second beeps. + Halfway beeps. + Voice assist so that you focus on your workout and not the screen. + Workout to music from your iPod. + Set music to pause to hear beeps and voice assist clearly. + Shuffle tracks or albums to suit your taste and workout. + Apple Health support. Pro Features Subscription: Some features of the app require a paid Pro Features In App Subscription. These include unlimited number of workouts, no ads, access to announcement settings, the ability to use chest strap heart rate monitors and more sounds. Learn more about these by clicking on the GET PRO button in the app settings on the top right. Health Disclaimer: Exercising can be extremely stressful for the body, please consult your doctor, trainer or coach before using this app. This app does not aim to teach, coach or guide you with fitness, exercises or working out. It is a utility for people (adults only) who already know what they are doing and why. Further, calculations for workout times, calories burned and heart rates when working out are only approximations and should not be used for any medical purposes.

About

Kronos Studio

Features
Read full description

Real strength workouts, written for the gear you've got and the 30 minutes you have. Open Kronos and today's session is ready: exercises, sets and the weights filled in, built for the equipment in front of you and the minutes you named. Different every time, shaped to your gear, your time, and how you actually feel today. You don't need more motivation. You need fewer decisions. IT ALREADY KNOWS • It already knows what's at your gym. • It already knows you only have 20 minutes. • It already knows you skipped Tuesday. • It already knows you hated lunges last time. • It already knows you've done legs twice this week. So you don't have to. HOW ONE TAP WORKS BUILT AROUND YOUR ACTUAL GEAR. A pair of dumbbells, a full gym, or nothing at all: tell Kronos what you have and it never writes a workout that needs a cable machine someone else is on. It fills in the weight, too, instead of leaving you a blank. HOTEL ROOM? HOTEL WORKOUT. Save your spots: gym, home, hotel, the park. Switch in one tap and the workout reshapes itself. Flag an injury once and it plans around that too. SWIPE EXERCISES, NOT EX'S. Love it, like it, meh, never again. Every swipe trains the next workout. PROGRAMS THAT BEND. Seventeen programs, 2 to 8 weeks each, written for your gear and shaped to your week instead of the other way round. The first session of every one is free. Any day you'd rather not be on one, build a single session instead. TRAIN WITH YOUR CREW Start a challenge, drop the code in the group chat, and every finished day puts your name on the Wall beside theirs. Pick a shape: a daily target, a ladder, a weekly max test, or just show up. Wildcards cover a missed day, streaks carry, and nobody gets a notification about your rest day. It's the part that makes people keep going, and it isn't a leaderboard for strangers. It's five people you already know. A BIG CALM TIMER We tell you what's next; you just lift. No tapping mid-set. Then swipe: right to keep, left for never again. Benchmarks are in there too. Cindy, Murph, and 42 more, each one scaled to the kit you actually own instead of the kit the workout assumed. LOGGING, WHEN YOU WANT IT Log a set if you want the number. Skip it if you don't. Your week, your lifts, and your history are there when you go looking, and never the price of getting a workout. PLUS A FREE INTERVAL TIMER. ACTUALLY FREE. HIIT, Tabata, EMOM, AMRAP, plus full custom intervals. Save unlimited presets. The screen stays awake, the cues mix over your music, and there are no ads. No account needed, no "Pro timer" upsell. Not now, not ever. WHAT WE BELIEVE Variety beats optimization. Constraints are features. Decisions are willpower taxes. Today's mood matters. Adherence beats intensity. Fun is a strategy. A B+ workout four days a week beats an A+ workout once. Every time. KRONOS PRO Free is the interval timer, forever, plus five workouts written for your gear and the first session of every program. Pro is the rest: a new workout every day you open the app, every session of all 17 programs, your whole history scored, up to 10 challenges at once, and crew insights. Prices are shown in the app and may vary by region. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms: https://getkronos.app/terms Privacy: https://getkronos.app/privacy Most fitness apps make you a workout plan. Kronos makes you a person who works out. The best workout is the one you'll actually do.

Screenshots

Tabata Timer and HIIT Timer4 screens
Kronos Studio4 screens

Verdict

The call

The clearest difference is ads: Kronos Studio at none against Tabata Timer and HIIT Timer's shown. Kronos Studio also leads on update cadence (every 2 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement 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. Tabata Timer and HIIT Timer sells 2 in-app purchases, starting at $19.99 per year and Kronos Studio sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Tabata Timer and HIIT Timer ships an update every 3 weeks, Kronos Studio every 2 days. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
Tabata Timer and HIIT Timer versus Kronos Studio: the parameters behind the verdict, then further details
ParameterTabata Timer and HIIT TimerKronos Studio
PriceFreeFree
Rating4.8 (74K ratings) — better—
Positive reviews79.5% of reviews—
Number of ratings74K — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.0 — better16.4
Further details — not scored
Size27 MB97 MB
Age rating12+12+
DeveloperAnuj SethMuller Labs LLC

Bugs and requests

Tabata Timer and HIIT Timer

Reported bugs

3 issues
  • App freezing or crashing on some devices
  • Purchased pro version not restoring properly
  • Inconsistent behavior when switching between apps

Requested features

5 requests
  • Ability to label and customize individual intervals
  • Option to create more complex interval sequences
  • Integration with wearable devices and fitness trackers
  • Customizable audio alerts and voice prompts
  • Improved workout history and progress tracking

Kronos Studio

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Tabata Timer and HIIT Timer

Subscriptions1
  • Pro Features Subscription$19.991 Year
One-time1
  • Pro Features$19.99
2 purchases

Kronos Studio

Subscriptions2
  • Kronos Pro Monthly$8.991 Month
  • Kronos Pro Yearly$49.991 Year

Questions

Is Tabata Timer and HIIT Timer free?
Tabata Timer and HIIT Timer is free to download, with in-app purchases available.
Is Kronos Studio free?
Kronos Studio is free to download, with in-app purchases available.
Do Tabata Timer and HIIT Timer or Kronos Studio have ads?
Tabata Timer and HIIT Timer shows ads; Kronos Studio does not.
Which is updated more often, Tabata Timer and HIIT Timer or Kronos Studio?
Tabata Timer and HIIT Timer ships an update every 3 weeks, and Kronos Studio every 2 days. Most recently, Tabata Timer and HIIT Timer was updated on October 12, 2026 and Kronos Studio on October 1, 2026.

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