Comparison

Tabaline 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

Tabaline

This app provides a customizable timer for high-intensity interval training (HIIT) and other workout types. It features a clean design, voice guidance, and background operation. Track your progress and sync with your health data.

Highlights
  • Customizable Tabata and HIIT timers
  • Voice guidance for workouts
  • Background operation support
  • Workout tracking
  • Health app integration
  • Universal app support (iPhone, iPad, Apple Watch)
Features
Read full description

Tabaline is a clean, simple, but powerful timer app for Tabata, also for HIIT, Crossfit, Running, Cycling, etc. Tabaline has the most unique personality with stunning design. The function is powerful enough, but not too complicated to make you confused like some other apps. It is the right app for you. Have a try, you’ll fall in love with it, and can't work without it. Main Features: - Clean & Clear & Graceful use logic and UI - Universal app, works on all devices! (iPhone, iPad, Apple watch, etc) - Easy to create any kind of Tabata timer - Portrait and landscape mode are supported - Voice guide you through your workout - Track your workout - Runs in the background - Apple watch app - Integrates with the Health app

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

Tabaline4 screens
Interval Timer for HIIT | Cero4 screens

Verdict

The call

The clearest difference is review sentiment: Interval Timer for HIIT | Cero at 75% against Tabaline's 0%. Interval Timer for HIIT | Cero also leads on ratings volume (437 vs 1). Tabaline's advantage is ads (none vs shown) and rating (5.0 vs 4.7). On price, update cadence, in-app purchases and monetization model 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. Tabaline sells 1 one-off in-app purchase 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

Tabaline holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Interval Timer for HIIT | Cero has 437 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of Tabaline's written reviews are positive against 75% of Interval Timer for HIIT | Cero's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Tabaline versus Interval Timer for HIIT | Cero: the parameters behind the verdict, then further details
ParameterTabalineInterval Timer for HIIT | Cero
PriceFreeFree
Rating5.0 (1 ratings) — better4.7 (437 ratings)
Positive reviews0.0% of reviews74.6% of reviews — better
Number of ratings1437 — better
Update frequencyEvery 3 daysEvery 3 days
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Apple Watch
Requires iOS9.3 — better16.0
Further details — not scored
Size7 MB45 MB
Age rating4+4+
Developer林 卢Flawless Studio LLC

Customer experience

Tabaline

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Interval Timer for HIIT | Cero

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

Bugs and requests

Tabaline

Not enough reviews yet to summarise bugs or 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

In-app purchases

1 purchases

Tabaline

One-time1
  • Pro Features$2.99
2 purchases

Interval Timer for HIIT | Cero

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

Questions

Is Tabaline free?
Tabaline 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, Tabaline or Interval Timer for HIIT | Cero?
Tabaline is rated higher. Tabaline averages 5.0 out of 5 from 1 ratings, while Interval Timer for HIIT | Cero averages 4.7 from 437 ratings.
Do Tabaline or Interval Timer for HIIT | Cero have ads?
Interval Timer for HIIT | Cero shows ads; Tabaline does not.
Which is updated more often, Tabaline or Interval Timer for HIIT | Cero?
Tabaline ships an update every 3 days, and Interval Timer for HIIT | Cero every 3 days. Most recently, Tabaline was updated on October 6, 2026 and Interval Timer for HIIT | Cero on October 24, 2026.

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