# HIIT Interval Timer | Cero vs Velites Workout Interval Timer

The clearest difference is in-app purchases: Velites Workout Interval Timer at none against HIIT Interval Timer | Cero's 2. Velites Workout Interval Timer also leads on iOS requirement (12.1 vs 16.0). HIIT Interval Timer | Cero's advantage is update cadence (every 3 days vs fortnightly) and ratings volume (435 vs 112). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. HIIT Interval Timer | Cero sells 2 in-app purchases, starting at $2.99 per month. Velites Workout Interval Timer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for HIIT Interval Timer | Cero against 4.8 for Velites Workout Interval Timer. Both are backed by a comparable volume of ratings — 435 and 112 respectively. Written reviews are what separate them: 75% of HIIT Interval Timer | Cero's written reviews are positive against 79% of Velites Workout Interval Timer's.

HIIT Interval Timer | Cero ships an update every 3 days, Velites Workout Interval Timer fortnightly. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | HIIT Interval Timer | Cero | Velites Workout Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (435 ratings)](https://appshunter.io/ios/app/hiit-interval-timer-cero/id1256319392/reviews) | **[4.8 (112 ratings)](https://appshunter.io/ios/app/velites-workout-interval-timer/id1463869938/reviews)** |
| Number of ratings | **435** | 112 |
| Positive reviews | 74.6% of reviews | **78.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 43 MB | 29 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Flawless Studio LLC](https://appshunter.io/developer/1228312508) | [TimerWOD](https://appshunter.io/developer/1463869937) |

## What reviewers say

### HIIT Interval Timer | Cero

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


### Velites Workout Interval Timer

[App page](https://appshunter.io/ios/app/velites-workout-interval-timer/id1463869938)

This interval timer app supports various workout styles like Tabata, HIIT, and EMOM. It offers customizable sound guidance, including music and a coach mode, to keep you motivated during training sessions at home or in the gym.

**Highlights:** Supports Tabata, HIIT, EMOM, For Time, and Count Up/Down workouts, Customizable sound guidance (beeps, songs, coach mode), Compatibility with music streaming apps, Fitness Coach Mode for motivation and round tracking, Interval timer with up to 4 intervals, Precise stopwatch function

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

**In-app purchases:** none


## Frequently asked questions

### Is HIIT Interval Timer | Cero free?

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

### Is Velites Workout Interval Timer free?

Velites Workout Interval Timer is free to download, with no in-app purchases.

### Which has better reviews, HIIT Interval Timer | Cero or Velites Workout Interval Timer?

Velites Workout Interval Timer is rated higher. HIIT Interval Timer | Cero averages 4.7 out of 5 from 435 ratings, while Velites Workout Interval Timer averages 4.8 from 112 ratings.

### Do HIIT Interval Timer | Cero or Velites Workout Interval Timer have ads?

Both HIIT Interval Timer | Cero and Velites Workout Interval Timer show ads.

### Which is updated more often, HIIT Interval Timer | Cero or Velites Workout Interval Timer?

HIIT Interval Timer | Cero ships an update every 3 days, and Velites Workout Interval Timer fortnightly. Most recently, HIIT Interval Timer | Cero was updated on October 12, 2026 and Velites Workout Interval Timer on October 3, 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.*