# HIIT Interval Timer | Cero vs Better Workout

The clearest difference is ads: Better Workout at none against HIIT Interval Timer | Cero's shown. Better Workout also leads on review sentiment (100% vs 75%). HIIT Interval Timer | Cero's advantage is ratings volume (435 vs 25). On price, rating, update cadence and in-app purchases 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 and Better Workout sells 8 in-app purchases, starting at $1.99 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 — 4.7 for HIIT Interval Timer | Cero against 4.7 for Better Workout. That said, the two scores are not equally well evidenced: HIIT Interval Timer | Cero has 435 ratings behind it against 25, so its average is the more settled of the two. Written reviews are what separate them: 75% of HIIT Interval Timer | Cero's written reviews are positive against 100% of Better Workout's.

HIIT Interval Timer | Cero ships an update every 3 days, Better Workout every 6 days. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | HIIT Interval Timer | Cero | Better Workout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (435 ratings)](https://appshunter.io/ios/app/hiit-interval-timer-cero/id1256319392/reviews)** | [4.7 (25 ratings)](https://appshunter.io/ios/app/better-workout-interval-timer/id1523173452/reviews) |
| Number of ratings | **435** | 25 |
| Positive reviews | 74.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | Free with in-app purchases | Freemium |
| Size | 43 MB | 10 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Flawless Studio LLC](https://appshunter.io/developer/1228312508) | [Martin Lasek](https://appshunter.io/developer/1371665659) |

## 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


### Better Workout

[App page](https://appshunter.io/ios/app/better-workout-interval-timer/id1523173452)

This app helps you achieve fitness goals with customizable interval timers for Tabata, HIIT, and circuit training. It offers guided programs, progress tracking for weight and calories, and rewards for consistency. Designed for simplicity and ease of use during workouts.

**Highlights:** Customizable interval timers, Tabata, HIIT, and Circuit training programs, Guided exercise sets with sound indicators, Create custom time or rep-based workouts, Track progress (weight, calories, workout frequency), Achievement system for hitting goals

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Better Workout Pro (1 Month) | $1.99 | per month |
| Better Workout Pro (1 Month) | $2.99 | per month |
| Better Workout Pro (1 Month) | $2.99 | per month |
| Better Workout Pro (1 Month) | $5.99 | per month |
| Better Workout Pro (1 Year) | $11.99 | per year |
| Better Workout Pro (Yearly) | $24.99 | per year |
| Better Workout Pro (Lifetime) | $19.99 | one-time |
| Better Workout Pro - Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is HIIT Interval Timer | Cero free?

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

### Is Better Workout free?

Better Workout is free to download, with in-app purchases available.

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

HIIT Interval Timer | Cero is rated higher. HIIT Interval Timer | Cero averages 4.7 out of 5 from 435 ratings, while Better Workout averages 4.7 from 25 ratings.

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

HIIT Interval Timer | Cero shows ads; Better Workout does not.

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

HIIT Interval Timer | Cero ships an update every 3 days, and Better Workout every 6 days. Most recently, HIIT Interval Timer | Cero was updated on October 12, 2026 and Better Workout on October 1, 2026.

---

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