# K vs Koi Keeping

The clearest difference is iOS requirement: K at 11.0 against Koi Keeping's 17.0. 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.

## The numbers

| Metric | K | Koi Keeping |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Size | 187 MB | 98 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [AMPERSAND EXPERIENCE TECH, INC.](https://appshunter.io/developer/1661041605) | [Nguyen Dinh Phat](https://appshunter.io/developer/6784507922) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-idolai/id6471567022)

**Features:** macOS Compatibility

**In-app purchases:** none


### Koi Keeping

[App page](https://appshunter.io/ios/app/koi-keeping/id6784507920)

**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 Koi Keeping free?

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

### Do K or Koi Keeping have ads?

Neither K nor Koi Keeping shows ads.

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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.*