# K vs CapyDoku

The clearest difference is update cadence: CapyDoku at daily against K's every 2 weeks. K's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

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

K ships an update every 2 weeks, CapyDoku daily. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | K | CapyDoku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Size | 122 MB | 23 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yuns Yang](https://appshunter.io/developer/1100275744) | [Row0 Inc](https://appshunter.io/developer/1896665067) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-zen-jigsaw/id6773318168)

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

**In-app purchases:** none


### CapyDoku

[App page](https://appshunter.io/ios/app/capydoku/id6788891707)

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

**In-app purchases:** none


## Frequently asked questions

### Is K free?

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

### Is CapyDoku free?

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

### Do K or CapyDoku have ads?

Both K and CapyDoku show ads.

### Which is updated more often, K or CapyDoku?

K ships an update every 2 weeks, and CapyDoku daily. Most recently, K was updated on October 25, 2026 and CapyDoku on October 24, 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.*