# PetIO vs Kadan

The clearest difference is update cadence: PetIO at every 3 weeks against Kadan's every 3 months. Kadan's advantage is iOS requirement (13.0 vs 15.1). 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.

PetIO ships an update every 3 weeks, Kadan every 3 months. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | PetIO | Kadan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 59 MB | 95 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Abdulsamad Zuhair](https://appshunter.io/developer/1746666080) | [MODE DEVELOPERS COMPANY](https://appshunter.io/developer/1552924672) |

## What reviewers say

### PetIO

[App page](https://appshunter.io/ios/app/petio/id6502765928)

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

**In-app purchases:** none


### Kadan

[App page](https://appshunter.io/ios/app/kadan/id6748937889)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PetIO free?

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

### Is Kadan free?

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

### Do PetIO or Kadan have ads?

Neither PetIO nor Kadan shows ads.

### Which is updated more often, PetIO or Kadan?

PetIO ships an update every 3 weeks, and Kadan every 3 months. Most recently, PetIO was updated on October 3, 2026 and Kadan on September 30, 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.*