# Interval Timer for HIIT | Cero vs Tabata Interval Stopwatch

The clearest difference is review sentiment: Tabata Interval Stopwatch at 100% against Interval Timer for HIIT | Cero's 75%. Tabata Interval Stopwatch also leads on rating (5.0 vs 4.7). Interval Timer for HIIT | Cero's advantage is ratings volume (436 vs 2) and update cadence (every 3 days vs fortnightly). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Interval Timer for HIIT | Cero sells 2 in-app purchases, starting at $2.99 per month and Tabata Interval Stopwatch sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Tabata Interval Stopwatch 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 436 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 75% of Interval Timer for HIIT | Cero's written reviews are positive against 100% of Tabata Interval Stopwatch's.

Interval Timer for HIIT | Cero ships an update every 3 days, Tabata Interval Stopwatch fortnightly. The most recent releases landed on October 20, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Interval Timer for HIIT | Cero | Tabata Interval Stopwatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (436 ratings)](https://appshunter.io/ios/app/interval-timer-for-hiit-cero/id1256319392/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tabata-interval-stopwatch/id1671518292/reviews)** |
| Number of ratings | **436** | 2 |
| Positive reviews | 74.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 42 MB | 36 MB |
| Requires iOS | **16.0** | 16.1 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Flawless Studio LLC](https://appshunter.io/developer/1228312508) | [Maksims Puskels](https://appshunter.io/developer/1441935698) |

## What reviewers say

### Interval Timer for HIIT | Cero

[App page](https://appshunter.io/ios/app/interval-timer-for-hiit-cero/id1256319392)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cero Pro Monthly | $2.99 | per month |
| Cero Pro | $14.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- 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**

- 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


### Tabata Interval Stopwatch

[App page](https://appshunter.io/ios/app/tabata-interval-stopwatch/id1671518292)

This app helps you manage exercise intervals with a simple and precise timer. Create custom exercise lists with countdowns, repeat patterns, and descriptions. Its intuitive interface makes it easy to use at the gym or home.

**Highlights:** Customizable interval timer, Create exercise lists, Repeat patterns, Add descriptions, Intuitive interface, Countdown timer

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Monthly | $2.99 | per month |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is Interval Timer for HIIT | Cero free?

Interval Timer for HIIT | Cero is free to download, with in-app purchases available.

### Is Tabata Interval Stopwatch free?

Tabata Interval Stopwatch is free to download, with in-app purchases available.

### Which has better reviews, Interval Timer for HIIT | Cero or Tabata Interval Stopwatch?

Tabata Interval Stopwatch is rated higher. Interval Timer for HIIT | Cero averages 4.7 out of 5 from 436 ratings, while Tabata Interval Stopwatch averages 5.0 from 2 ratings.

### Do Interval Timer for HIIT | Cero or Tabata Interval Stopwatch have ads?

Both Interval Timer for HIIT | Cero and Tabata Interval Stopwatch show ads.

### Which is updated more often, Interval Timer for HIIT | Cero or Tabata Interval Stopwatch?

Interval Timer for HIIT | Cero ships an update every 3 days, and Tabata Interval Stopwatch fortnightly. Most recently, Interval Timer for HIIT | Cero was updated on October 20, 2026 and Tabata Interval Stopwatch on October 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*