Comparison

HIIT Interval Timer | Cero vs Interval Timer ▸ HIIT & Tabata

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

Head to head
About

HIIT Interval Timer | 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

Interval Timer ▸ HIIT & Tabata

This app helps you structure and time your workouts with customizable intervals, alerts, and repeating sets. It's ideal for various fitness activities like HIIT, Tabata, boxing, running, and circuit training.

Highlights
  • Customizable intervals (work, rest, recovery)
  • Customizable sound and visual alerts
  • Repeating sets programming
  • Countdown timer with visual cues
  • Supports HIIT, Tabata, boxing, running, circuit training, yoga, meditation
Features
Read full description

Elevate your workouts with the ultimate Interval Timer app, designed to boost your fitness regimen. Whether you're a seasoned athlete or just starting out, this app is your perfect training partner. With a sleek, user-friendly interface and powerful features, Interval Timer takes your workouts to the next level. Key Features: • Customizable Intervals: Tailor your workouts with precision. Set the duration for work, rest and recovery intervals to match your training goals. • Customizable Alerts: Choose from a variety of sounds and visual cues to keep you motivated and on track during your workout sessions. • Repeating Sets: Easily program multiple sets with the option to repeat for a comprehensive training experience. • Countdown Timer: Get a visual cue of the time remaining in your intervals, ensuring you stay focused and energized. • Ideal for Various Sports: Interval Timer is perfect for a wide range of sports including: - HIIT Workouts: Maximize your high-intensity interval training for improved cardiovascular fitness and fat loss. - Tabata: Optimize your Tabata sessions for intense bursts of activity followed by short rests. - Boxing and MMA Training: Enhance your agility, strength, and conditioning for combat sports. - Running and Sprinting: Fine-tune your speed and endurance on the track or the trail. - Circuit Training: Perfect for bodyweight exercises, weights, or a combination of both. - Yoga and Meditation: Use intervals to time poses, stretches, or meditation sessions for a balanced practice. Interval Timer is designed for everyone, from casual fitness enthusiasts to dedicated athletes. Don't let your workouts plateau. Download Interval Timer today and experience the difference!

Screenshots

HIIT Interval Timer | Cero4 screens
Interval Timer ▸ HIIT & Tabata4 screens

Verdict

The call

The clearest difference is in-app purchases: Interval Timer ▸ HIIT & Tabata at none against HIIT Interval Timer | Cero's 1. Interval Timer ▸ HIIT & Tabata also leads on ads (none vs shown) and review sentiment (100% vs 75%). HIIT Interval Timer | Cero's advantage is update cadence (every 2 weeks vs every 11 months) and ratings volume (435 vs 9). On price, 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. HIIT Interval Timer | Cero sells 1 one-off in-app purchase. Interval Timer ▸ HIIT & Tabata asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Interval Timer ▸ HIIT & Tabata holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: HIIT Interval Timer | Cero has 435 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 75% of HIIT Interval Timer | Cero's written reviews are positive against 100% of Interval Timer ▸ HIIT & Tabata's.

UpkeepUpdate frequency

HIIT Interval Timer | Cero ships an update every 2 weeks, Interval Timer ▸ HIIT & Tabata every 11 months. The most recent releases landed on September 20, 2026 and September 8, 2026 respectively.

Scorecard7 real differences · 3 level
HIIT Interval Timer | Cero versus Interval Timer ▸ HIIT & Tabata: the parameters behind the verdict, then further details
ParameterHIIT Interval Timer | CeroInterval Timer ▸ HIIT & Tabata
PriceFreeFree
Rating4.7 (435 ratings)5.0 (9 ratings) — better
Positive reviews74.6% of reviews100.0% of reviews — better
Number of ratings435 — better9
Update frequencyEvery 2 weeks — betterEvery 11 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple TV, Apple Watch — better
Requires iOS16.0 — better16.6
Further details — not scored
Size42 MB16 MB
Age rating4+4+
DeveloperFlawless Studio LLCJuxhin Bakalli Technologies

Customer experience

HIIT Interval Timer | Cero

All ratings435 ratings
Positive92.9%
Neutral3.9%
Negative3.2%
Written reviews59 reviews
Positive74.6%
Neutral10.2%
Negative15.3%

Interval Timer ▸ HIIT & Tabata

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

HIIT Interval Timer | 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

Interval Timer ▸ HIIT & Tabata

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

HIIT Interval Timer | Cero

One-time1
  • Cero Pro$3.99
None

Interval Timer ▸ HIIT & Tabata

No in-app purchases

Questions

Is HIIT Interval Timer | Cero free?
HIIT Interval Timer | Cero is free to download, with in-app purchases available.
Is Interval Timer ▸ HIIT & Tabata free?
Interval Timer ▸ HIIT & Tabata is free to download, with no in-app purchases.
Which has better reviews, HIIT Interval Timer | Cero or Interval Timer ▸ HIIT & Tabata?
Interval Timer ▸ HIIT & Tabata is rated higher. HIIT Interval Timer | Cero averages 4.7 out of 5 from 435 ratings, while Interval Timer ▸ HIIT & Tabata averages 5.0 from 9 ratings.
Do HIIT Interval Timer | Cero or Interval Timer ▸ HIIT & Tabata have ads?
HIIT Interval Timer | Cero shows ads; Interval Timer ▸ HIIT & Tabata does not.
Which is updated more often, HIIT Interval Timer | Cero or Interval Timer ▸ HIIT & Tabata?
HIIT Interval Timer | Cero ships an update every 2 weeks, and Interval Timer ▸ HIIT & Tabata every 11 months. Most recently, HIIT Interval Timer | Cero was updated on September 20, 2026 and Interval Timer ▸ HIIT & Tabata on September 8, 2026.

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