Comparison

Totally Tabata Timer Protocol vs Interval Timer for HIIT | Cero

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

Head to head
About

Totally Tabata Timer Protocol

This app provides a highly customizable timer for Tabata and HIIT workouts. It offers built-in workouts, a flexible workout builder, and background operation with sound cues. Track progress with a workout log and integrate with the Health app.

Highlights
  • Customizable intervals
  • Workout builder
  • Built-in curated workouts
  • Background operation
  • Workout log
  • Siri Shortcuts
  • Music integration
Features
Read full description

The best Tabata timer app for IOS just got even better! Downloaded by hundreds of thousands of awesome people just like you, Totally Tabata is the workout companion you’ve been looking for.  ** Now with Siri Shortcuts on iOS 12** Before we tell you more, have a look at what people are saying: "I've used other tabata apps in the past but this is the first one I have ever written a review for because I love it so much! " "Simple, customizeable , does exactly what it promised. Highly recommend this app." "I've been searching for a timer this flexible. It has features which can rarely be seen in other tabata timers. Best ever yet! Highly recommended." "This app is perfect in it's simplicity. Everything you need for a HIIT countdown timer with just the right amount of bells and whistles." You love Tabata because it’s a quick workout style that you can easily fit into your daily routine. We agree, and would hate to see you squandering your valuable time screwing around with a lame, hard to use timer app. That’s why we built a Tabata timer so easy to use, even your technology-challenged family member of choice would adore it. Download and get started in seconds with built-in curated workouts. Go deeper with the flexibility of the best workout builder on the app store, adding your own custom intervals, rests, warm-up/cool-down,  caloric burn, and music selection. Speaking of music, have it your way with tunes from your own music library or use music from other apps, Totally Tabata runs in the background so you can continue your routine even while using other apps or putting your device to sleep. Subtle sound queues and text-to-speech interval  announcements will guide you through each workout. And of course, we know how important it is for you to make progress towards your fitness goals, so we’ve added a workout log as well as easy integration with the iOS health app. Totally Tabata - Your workouts, your way.

About

Interval Timer for HIIT | Cero

This interval timer app enhances various workouts like HIIT, Tabata, and yoga with intuitive design and customizable timer modes. Create and save custom intervals, track calorie expenditure, and sync settings across devices, including Apple Watch.

Highlights
  • Customizable interval timers
  • Simple and advanced timer modes
  • Create and save multiple workout settings
  • Apple Watch compatibility with heart monitor
  • Automatic calorie tracking to Apple Health
  • Cross-device sync
Features
Read full description

Build an interval workout around the way you train. Cero is a flexible interval timer for HIIT, Tabata, circuit training, WODs and HYROX preparation. Set up a quick work/rest timer or program each interval in detail. Distinct colors, large controls and reliable cues keep you focused on the session instead of the clock. BUILD YOUR SESSION • Set work, recovery, sets, warm-up and cool-down. • Create advanced workouts with custom intervals, colors, icons and intensity levels. • Save, duplicate and reorder timers. • Share timers by file or QR code. • Review completed sessions in workout history. STAY IN THE WORKOUT • Follow compatible sessions with Live Activities and Dynamic Island. • Start saved or recent timers from Home Screen widgets. • Use Siri and Shortcuts to start, pause, resume and stop a timer. • Put Gym Display on a larger screen or mirrored TV. • Choose a default song or assign music to individual intervals. • Customize sounds, voice cues, vibrations and background alerts. TRAIN BY HEART RATE Adaptive HR can extend recovery until you reach your target heart rate, then guide hard efforts with low and high alerts. Pair a Bluetooth heart-rate monitor with iPhone or train with heart-rate data from Apple Watch. COUNTDOWN AND STOPWATCH The built-in countdown and lap stopwatch cover warm-ups, station changes, rest periods and race-day practice. Stopwatch sessions continue after you close and reopen the app. ON APPLE WATCH Run saved workouts from your wrist, follow heart rate and use the standalone countdown and stopwatch. Cero can save completed workouts and estimated calories to Apple Health. Automatic iCloud backups help protect saved timers and custom intervals. Useful for HIIT, Tabata, circuits, EMOM-style workouts, boxing rounds, strength and conditioning, indoor cycling, running intervals and hybrid race preparation. Feedback and suggestions: hi@flawless.studio Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Totally Tabata Timer Protocol4 screens
Interval Timer for HIIT | Cero4 screens

Verdict

The call

The clearest difference is update cadence: Interval Timer for HIIT | Cero at every 3 days against Totally Tabata Timer Protocol's every 3 months. Totally Tabata Timer Protocol's advantage is review sentiment (84% vs 75%) and iOS requirement (12.0 vs 16.0). On price, rating, ratings volume and ads 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. Totally Tabata Timer Protocol sells 5 one-off in-app purchases and Interval Timer for HIIT | Cero sells 2 in-app purchases, starting at $2.99 per month. 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 — 4.6 for Totally Tabata Timer Protocol against 4.7 for Interval Timer for HIIT | Cero. Both are backed by a comparable volume of ratings — 642 and 437 respectively. Written reviews are what separate them: 84% of Totally Tabata Timer Protocol's written reviews are positive against 75% of Interval Timer for HIIT | Cero's.

UpkeepUpdate frequency

Totally Tabata Timer Protocol ships an update every 3 months, Interval Timer for HIIT | Cero every 3 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Totally Tabata Timer Protocol versus Interval Timer for HIIT | Cero: the parameters behind the verdict, then further details
ParameterTotally Tabata Timer ProtocolInterval Timer for HIIT | Cero
PriceFreeFree
Rating4.6 (642 ratings)4.7 (437 ratings) — better
Positive reviews84.4% of reviews — better74.6% of reviews
Number of ratings642 — better437
Update frequencyEvery 3 monthsEvery 3 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Apple Watch
Requires iOS12.0 — better16.0
Further details — not scored
Size35 MB45 MB
Age rating4+4+
DeveloperVelocity Raptor IncorporatedFlawless Studio LLC

Customer experience

Totally Tabata Timer Protocol

All ratings642 ratings
Positive91.6%
Neutral5.0%
Negative3.4%
Written reviews186 reviews
Positive84.4%
Neutral5.4%
Negative10.2%

Interval Timer for HIIT | Cero

All ratings437 ratings
Positive92.9%
Neutral3.9%
Negative3.2%
Written reviews59 reviews
Positive74.6%
Neutral10.2%
Negative15.3%

User reviews

Totally Tabata Timer Protocol

From 642 App Store ratings

What we love

  • 👍 Clean and easy to use
  • 🚀 Simple and efficient
  • 💡 Customizable workouts
  • 🎵 Integrates with own music
  • ⏱️ Great timer functionality

Room to improve

  • 🐛 Buggy interface
  • 🔇 Low volume/audio issues
  • 💰 Expensive pro version
  • 🤔 Confusing to set up
  • 🔍 Limited customization

Interval Timer for HIIT | Cero

From 437 App Store ratings

What we love

  • 👍 Simple and straightforward
  • 👍 Very practical and customizable
  • 👍 Great for HIIT and Tabata
  • 👍 Clear design and easy to use
  • 👍 Good value, no subscription

Room to improve

  • 🔋 Drains battery
  • 🎶 Music playback interrupted
  • ⚠️ Ads interrupt timers
  • 🔊 Weak or non-functional sound/haptics
  • 🔄 Forced updates

Bugs and requests

Totally Tabata Timer Protocol

Reported bugs

4 issues
  • Crashes when creating workouts
  • Music playback issues
  • Time scrolls cut off
  • Inability to save music selections

Requested features

5 requests
  • Pause before starting
  • Sync with Apple Health
  • More preset workouts
  • Better music integration
  • Apple Watch compatibility

Interval Timer for HIIT | Cero

Reported bugs

4 issues
  • App runs in background draining battery
  • Rotation broke after update
  • Apple workout app overrides Cero app on Apple Watch
  • Interval signals too weak or not working

Requested features

5 requests
  • Ability to group timers
  • Option to add warm-up and cool-down features
  • Ability to type numbers for time adjustment
  • Timer sounds through headphones or interrupting music
  • Ability to change exercise names

In-app purchases

5 purchases

Totally Tabata Timer Protocol

One-time5
  • The 7-Minute Workout$0.99
  • Dr. Oz Quick Workouts$0.99
  • Premium Upgrade$1.99
Show 2 more
  • Mega Pack$3.99
  • Totally Tabata Pro$4.99
2 purchases

Interval Timer for HIIT | Cero

Subscriptions1
  • Cero Pro Monthly7 Days trial$2.991 Month
One-time1
  • Cero Pro$14.99

Questions

Is Totally Tabata Timer Protocol free?
Totally Tabata Timer Protocol is free to download, with in-app purchases available.
Is Interval Timer for HIIT | Cero free?
Interval Timer for HIIT | Cero is free to download, with in-app purchases available.
Which has better reviews, Totally Tabata Timer Protocol or Interval Timer for HIIT | Cero?
Interval Timer for HIIT | Cero is rated higher. Totally Tabata Timer Protocol averages 4.6 out of 5 from 642 ratings, while Interval Timer for HIIT | Cero averages 4.7 from 437 ratings.
Do Totally Tabata Timer Protocol or Interval Timer for HIIT | Cero have ads?
Both Totally Tabata Timer Protocol and Interval Timer for HIIT | Cero show ads.
Which is updated more often, Totally Tabata Timer Protocol or Interval Timer for HIIT | Cero?
Totally Tabata Timer Protocol ships an update every 3 months, and Interval Timer for HIIT | Cero every 3 days. Most recently, Totally Tabata Timer Protocol was updated on October 20, 2026 and Interval Timer for HIIT | Cero on October 24, 2026.

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