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

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.

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.

Interval Timer for HIIT | Cero ships an update every 3 days, Hiit Timer & Tabata stopwatch monthly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Interval Timer for HIIT | Cero | Hiit Timer & Tabata stopwatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (437 ratings)](https://appshunter.io/ios/app/interval-timer-for-hiit-cero/id1256319392/reviews)** | — |
| Number of ratings | **437** | — |
| Positive reviews | 74.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 18 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Flawless Studio LLC](https://appshunter.io/developer/1228312508) | [Alcaeus Development AB](https://appshunter.io/developer/1638202818) |

## 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, iPhone Duo 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


### Hiit Timer & Tabata stopwatch

[App page](https://appshunter.io/ios/app/hiit-timer-and-tabata-stopwatch/id6547849440)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - Yearly Subscription | $29.99 | 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 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 29, 2026 and Hiit Timer & Tabata stopwatch on October 24, 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.*