# Koch vs Chess Variants Studio

The clearest difference is in-app purchases: Koch at none against Chess Variants Studio's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chess Variants Studio sells 1 one-off in-app purchase. Koch asks for nothing beyond the download.

## The numbers

| Metric | Koch | Chess Variants Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Size | 43 MB | 8 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [itch koch](https://appshunter.io/developer/1893800961) | [Michael Adams](https://appshunter.io/developer/743520896) |

## What reviewers say

### Koch

[App page](https://appshunter.io/ios/app/koch-chess/id6762317677)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chess Variants Studio

[App page](https://appshunter.io/ios/app/chess-variants-studio/id6789392443)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Plays and Views | $3.99 | one-time |


## Frequently asked questions

### Is Koch free?

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

### Is Chess Variants Studio free?

Chess Variants Studio is free to download, with in-app purchases available.

### Do Koch or Chess Variants Studio have ads?

Neither Koch nor Chess Variants Studio 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.*