Comparison

Interval Timer for HIIT | Cero vs HIIT & Tabata Workout

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

Head to head
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/

About

HIIT & Tabata Workout

Create and customize your own high-intensity interval training (HIIT) and Tabata routines with an intuitive interface. Set voice commands for each activity to stay on track during workouts. Save sessions to Apple Health and track progress with insightful features.

Highlights
  • Custom HIIT routine creation
  • Voice command integration
  • Apple Health saving
  • Progress tracking with Insights
  • Social sharing of results
Features
Read full description

HIIT & Tabata Workout is the ultimate app for creating and customizing your own HIIT routines. With our easy-to-use interface, you can easily add and organize the activities you want to include in your routine. Whether you're a beginner or an experienced fitness enthusiast, HIIT & Tabata Timer has something for everyone. But that's not all - our app also lets you specify voice commands for each activity, making it easier to stay on track during your workouts. Just make sure to turn off silent mode on your phone to hear the commands! And when you're finished with your HIIT session, you can save it in apple health. You can use our Insights feature to track your progress and share your results with friends and family on social media. With HIIT & Tabata Timer, you'll have everything you need to create and execute the perfect HIIT routine.

Screenshots

Interval Timer for HIIT | Cero4 screens
HIIT & Tabata Workout4 screens

Verdict

The call

The clearest difference is in-app purchases: HIIT & Tabata Workout at none against Interval Timer for HIIT | Cero's 2. HIIT & Tabata Workout also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.0). Interval Timer for HIIT | Cero's advantage is update cadence (every 3 days vs every 4 weeks) and review sentiment (75% vs 50%). On price, rating 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 for HIIT | Cero sells 2 in-app purchases, starting at $2.99 per month. HIIT & Tabata Workout asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Interval Timer for HIIT | Cero against 4.6 for HIIT & Tabata Workout. That said, the two scores are not equally well evidenced: Interval Timer for HIIT | Cero has 438 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 75% of Interval Timer for HIIT | Cero's written reviews are positive against 50% of HIIT & Tabata Workout's.

UpkeepUpdate frequency

Interval Timer for HIIT | Cero ships an update every 3 days, HIIT & Tabata Workout every 4 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Interval Timer for HIIT | Cero versus HIIT & Tabata Workout: the parameters behind the verdict, then further details
ParameterInterval Timer for HIIT | CeroHIIT & Tabata Workout
PriceFreeFree
Rating4.7 (438 ratings) — better4.6 (5 ratings)
Positive reviews74.6% of reviews — better50.0% of reviews
Number of ratings438 — better5
Update frequencyEvery 3 days — betterEvery 4 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size45 MB41 MB
Age rating4+4+
DeveloperFlawless Studio LLCKushtrim Abdiju

Customer experience

Interval Timer for HIIT | Cero

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

HIIT & Tabata Workout

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

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

HIIT & Tabata Workout

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Interval Timer for HIIT | Cero

Subscriptions1
  • Cero Pro Monthly7 Days trial$2.991 Month
One-time1
  • Cero Pro$14.99
None

HIIT & Tabata Workout

No in-app purchases

Questions

Is Interval Timer for HIIT | Cero free?
Interval Timer for HIIT | Cero is free to download, with in-app purchases available.
Is HIIT & Tabata Workout free?
HIIT & Tabata Workout is free to download, with no in-app purchases.
Which has better reviews, Interval Timer for HIIT | Cero or HIIT & Tabata Workout?
Interval Timer for HIIT | Cero is rated higher. Interval Timer for HIIT | Cero averages 4.7 out of 5 from 438 ratings, while HIIT & Tabata Workout averages 4.6 from 5 ratings.
Do Interval Timer for HIIT | Cero or HIIT & Tabata Workout have ads?
Interval Timer for HIIT | Cero shows ads; HIIT & Tabata Workout does not.
Which is updated more often, Interval Timer for HIIT | Cero or HIIT & Tabata Workout?
Interval Timer for HIIT | Cero ships an update every 3 days, and HIIT & Tabata Workout every 4 weeks. Most recently, Interval Timer for HIIT | Cero was updated on November 2, 2026 and HIIT & Tabata Workout on November 3, 2026.

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