# DeltaChess vs Koch

The clearest difference is price: Koch at Free against DeltaChess's $0.99. Koch also leads on in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Koch is free to download; DeltaChess costs $0.99 up front. DeltaChess sells 3 one-off in-app purchases. Koch asks for nothing beyond the download.

## The numbers

| Metric | DeltaChess | Koch |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Size | 156 MB | 43 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sezgin Serin](https://appshunter.io/developer/1793997554) | [itch koch](https://appshunter.io/developer/1893800961) |

## What reviewers say

### DeltaChess

[App page](https://appshunter.io/ios/app/deltachess/id6753863395)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Developer Tip – Small | $0.99 | one-time |
| Developer Tip – Medium | $9.99 | one-time |
| Developer Tip – Large | $99.99 | one-time |


### Koch

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DeltaChess free?

DeltaChess costs $0.99, and also offers in-app purchases.

### Is Koch free?

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

### Do DeltaChess or Koch have ads?

Neither DeltaChess nor Koch 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.*