# CardioBird vs O'Pet Link

The clearest difference is update cadence: O'Pet Link at weekly against CardioBird's every 5 weeks. CardioBird's advantage is iOS requirement (13.0 vs 15.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CardioBird ships an update every 5 weeks, O'Pet Link weekly. The most recent releases landed on October 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CardioBird | O'Pet Link |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 54 MB | 232 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ANIWARE Company Limited](https://appshunter.io/developer/1403688562) | [Bionet CO.,LTD](https://appshunter.io/developer/1526082887) |

## What reviewers say

### CardioBird

[App page](https://appshunter.io/ios/app/cardiobird/id1576036995)

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

**In-app purchases:** none


### O'Pet Link

[App page](https://appshunter.io/ios/app/opet-link/id6471456679)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CardioBird free?

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

### Is O'Pet Link free?

O'Pet Link is free to download, with no in-app purchases.

### Do CardioBird or O'Pet Link have ads?

Neither CardioBird nor O'Pet Link shows ads.

### Which is updated more often, CardioBird or O'Pet Link?

CardioBird ships an update every 5 weeks, and O'Pet Link weekly. Most recently, CardioBird was updated on October 2, 2026 and O'Pet Link on October 25, 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.*