# Interval Timer for HIIT | Cero vs Intervale

The clearest difference is in-app purchases: Intervale at none against Interval Timer for HIIT | Cero's 2. Intervale also leads on ads (none vs shown). Interval Timer for HIIT | Cero's advantage is ratings volume (441 vs 8). On price, rating, update cadence and device support 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. Intervale asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Interval Timer for HIIT | Cero against 4.8 for Intervale. That said, the two scores are not equally well evidenced: Interval Timer for HIIT | Cero has 441 ratings behind it against 8, so its average is the more settled of the two.

Interval Timer for HIIT | Cero ships an update every 3 days, Intervale every 5 days. Both last shipped on November 13, 2026.

## The numbers

| Metric | Interval Timer for HIIT | Cero | Intervale |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (441 ratings)](https://appshunter.io/ios/app/interval-timer-for-hiit-cero/id1256319392/reviews) | **[4.8 (8 ratings)](https://appshunter.io/ios/app/intervale-interval-timer/id6821462381/reviews)** |
| Number of ratings | **441** | 8 |
| Positive reviews | 74.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 59 MB | 10 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Flawless Studio LLC](https://appshunter.io/developer/1228312508) | [Stephen Dawson](https://appshunter.io/developer/6775208380) |

## What reviewers say

### Interval Timer for HIIT | Cero

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

Create custom interval workouts for HIIT, Tabata, and circuit training. This app offers detailed programming with custom intervals, colors, and icons. Stay focused with large controls, clear cues, and optional heart rate training.

**Highlights:** Customizable interval programming, Heart rate training integration, Live Activities and Dynamic Island support, Siri and Shortcuts integration, Workout history and calorie tracking, Apple Watch app, Shareable timers

**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


### Intervale

[App page](https://appshunter.io/ios/app/intervale-interval-timer/id6821462381)

Create custom interval timers for various workouts, including HIIT, rehab, and stretching. Get spoken cues and haptic feedback to guide you through each step. Seamlessly integrate with Apple Health to track your progress.

**Highlights:** Customizable named steps with work/rest times, Spoken cues and haptic feedback, Background operation with screen locked, Routine creation for multiple timers, Apple Health integration for workout tracking, Siri and Shortcuts support, Timer sharing via links or QR codes

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

**In-app purchases:** none


## 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 Intervale free?

Intervale is free to download, with no in-app purchases.

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

Intervale is rated higher. Interval Timer for HIIT | Cero averages 4.7 out of 5 from 441 ratings, while Intervale averages 4.8 from 8 ratings.

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

Interval Timer for HIIT | Cero shows ads; Intervale does not.

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

Interval Timer for HIIT | Cero ships an update every 3 days, and Intervale every 5 days. Most recently, Interval Timer for HIIT | Cero was updated on November 13, 2026 and Intervale on November 13, 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.*