# iTimer vs CARDIA

The clearest difference is in-app purchases: CARDIA at none against iTimer's 2. CARDIA also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. iTimer sells 2 in-app purchases, starting at $3.99 per month. CARDIA asks for nothing beyond the download.

iTimer ships an update every 3 weeks, CARDIA every 4 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | iTimer | CARDIA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 51 MB | 35 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Babak Shirvani](https://appshunter.io/developer/1816520297) | [Masataka Sato](https://appshunter.io/developer/1800609792) |

## What reviewers say

### iTimer

[App page](https://appshunter.io/ios/app/itimer-hiit-and-interval-timer/id6762029019)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iTimer Pro (Monthly) | $3.99 | per month |
| Lifetime Access | $14.99 | one-time |


### CARDIA

[App page](https://appshunter.io/ios/app/cardia-heart-rate-hiit-timer/id6770769019)

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

**In-app purchases:** none


## Frequently asked questions

### Is iTimer free?

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

### Is CARDIA free?

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

### Do iTimer or CARDIA have ads?

Neither iTimer nor CARDIA shows ads.

### Which is updated more often, iTimer or CARDIA?

iTimer ships an update every 3 weeks, and CARDIA every 4 days. Most recently, iTimer was updated on November 5, 2026 and CARDIA on November 5, 2026.

---

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