# Totally Tabata Timer Protocol vs Interval Timer for HIIT | Cero

The clearest difference is update cadence: Interval Timer for HIIT | Cero at every 3 days against Totally Tabata Timer Protocol's every 3 months. Totally Tabata Timer Protocol's advantage is review sentiment (84% vs 75%) and iOS requirement (12.0 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Totally Tabata Timer Protocol sells 5 one-off in-app purchases 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.

On the App Store both sit at effectively the same score — 4.6 for Totally Tabata Timer Protocol against 4.7 for Interval Timer for HIIT | Cero. Both are backed by a comparable volume of ratings — 642 and 437 respectively. Written reviews are what separate them: 84% of Totally Tabata Timer Protocol's written reviews are positive against 75% of Interval Timer for HIIT | Cero's.

Totally Tabata Timer Protocol ships an update every 3 months, Interval Timer for HIIT | Cero every 3 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Totally Tabata Timer Protocol | Interval Timer for HIIT | Cero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (642 ratings)](https://appshunter.io/ios/app/totally-tabata-timer-protocol/id856659483/reviews) | **[4.7 (437 ratings)](https://appshunter.io/ios/app/interval-timer-for-hiit-cero/id1256319392/reviews)** |
| Number of ratings | **642** | 437 |
| Positive reviews | **84.4% of reviews** | 74.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 35 MB | 45 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Velocity Raptor Incorporated](https://appshunter.io/developer/296937260) | [Flawless Studio LLC](https://appshunter.io/developer/1228312508) |

## What reviewers say

### Totally Tabata Timer Protocol

[App page](https://appshunter.io/ios/app/totally-tabata-timer-protocol/id856659483)

This app provides a highly customizable timer for Tabata and HIIT workouts. It offers built-in workouts, a flexible workout builder, and background operation with sound cues. Track progress with a workout log and integrate with the Health app.

**Highlights:** Customizable intervals, Workout builder, Built-in curated workouts, Background operation, Workout log, Siri Shortcuts, Music integration

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| The 7-Minute Workout | $0.99 | one-time |
| Dr. Oz Quick Workouts | $0.99 | one-time |
| Premium Upgrade | $1.99 | one-time |
| Mega Pack | $3.99 | one-time |
| Totally Tabata Pro | $4.99 | one-time |

**What reviewers like**

- 👍 Clean and easy to use
- 🚀 Simple and efficient
- 💡 Customizable workouts
- 🎵 Integrates with own music
- ⏱️ Great timer functionality

**What reviewers complain about**

- 🐛 Buggy interface
- 🔇 Low volume/audio issues
- 💰 Expensive pro version
- 🤔 Confusing to set up
- 🔍 Limited customization

**Reported bugs**

- Crashes when creating workouts
- Music playback issues
- Time scrolls cut off
- Inability to save music selections

**Requested features**

- Pause before starting
- Sync with Apple Health
- More preset workouts
- Better music integration
- Apple Watch compatibility


### 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


## Frequently asked questions

### Is Totally Tabata Timer Protocol free?

Totally Tabata Timer Protocol 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, Totally Tabata Timer Protocol or Interval Timer for HIIT | Cero?

Interval Timer for HIIT | Cero is rated higher. Totally Tabata Timer Protocol averages 4.6 out of 5 from 642 ratings, while Interval Timer for HIIT | Cero averages 4.7 from 437 ratings.

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

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

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

Totally Tabata Timer Protocol ships an update every 3 months, and Interval Timer for HIIT | Cero every 3 days. Most recently, Totally Tabata Timer Protocol was updated on October 20, 2026 and Interval Timer for HIIT | Cero 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.*