Comparison

Interval Timer for HIIT | Cero vs Hiit Timer & Tabata stopwatch

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 Timer & Tabata stopwatch

Features
Read full description

Introducing the ultimate Interval Timer app—your go-to companion for an efficient and customizable workout experience. Whether you're looking to jump straight into a session or craft a routine tailored to your fitness goals, our app has you covered: - Quick Start Mode: Start your workout with a single tap, perfect for when you need to get moving fast. - Advanced Mode: Build custom workouts that match your pace and style, offering you full control over your exercise routine. - Pre-Made Workout Library: Choose from a variety of ready-to-go workouts to keep your training fresh and challenging. - Comprehensive Statistics: Track your progress with detailed insights into burned calories, total workout time, and more. Elevate your fitness journey with an app that makes interval training simple, effective, and fun. Whether you're a beginner or a seasoned athlete, our Interval Timer app empowers you to maximize every session and achieve your personal best. Terms of service: https://github.com/alcaeusdevelopment/Tabata-Timer-Policies/blob/main/Terms-and-conditions.md

Screenshots

Interval Timer for HIIT | Cero4 screens
Hiit Timer & Tabata stopwatch4 screens

Verdict

The call

The clearest difference is ads: Hiit Timer & Tabata stopwatch at none against Interval Timer for HIIT | Cero's shown. Interval Timer for HIIT | Cero's advantage is update cadence (every 3 days vs monthly) and device support (3 vs 1). On price, in-app purchases 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. Interval Timer for HIIT | Cero sells 2 in-app purchases, starting at $2.99 per month and Hiit Timer & Tabata stopwatch sells 1 in-app purchase, starting at $29.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interval Timer for HIIT | Cero ships an update every 3 days, Hiit Timer & Tabata stopwatch monthly. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Interval Timer for HIIT | Cero versus Hiit Timer & Tabata stopwatch: the parameters behind the verdict, then further details
ParameterInterval Timer for HIIT | CeroHiit Timer & Tabata stopwatch
PriceFreeFree
Rating4.7 (437 ratings) — better—
Positive reviews74.6% of reviews—
Number of ratings437 — better—
Update frequencyEvery 3 days — betterMonthly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS16.016.0
Further details — not scored
Size45 MB18 MB
Age rating4+4+
DeveloperFlawless Studio LLCAlcaeus Development AB

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 Timer & Tabata stopwatch

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
1 purchases

Hiit Timer & Tabata stopwatch

Subscriptions1
  • Pro - Yearly Subscription7 Days trial$29.991 Year

Questions

Is Interval Timer for HIIT | Cero free?
Interval Timer for HIIT | Cero is free to download, with in-app purchases available.
Is Hiit Timer & Tabata stopwatch free?
Hiit Timer & Tabata stopwatch is free to download, with in-app purchases available.
Do Interval Timer for HIIT | Cero or Hiit Timer & Tabata stopwatch have ads?
Interval Timer for HIIT | Cero shows ads; Hiit Timer & Tabata stopwatch does not.
Which is updated more often, Interval Timer for HIIT | Cero or Hiit Timer & Tabata stopwatch?
Interval Timer for HIIT | Cero ships an update every 3 days, and Hiit Timer & Tabata stopwatch monthly. Most recently, Interval Timer for HIIT | Cero was updated on October 24, 2026 and Hiit Timer & Tabata stopwatch on October 24, 2026.

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