# Koch vs ChessImprover

The clearest difference is iOS requirement: Koch at 15.1 against ChessImprover'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 | Koch | ChessImprover |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/chessimprover/id6784499127/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Monetization | — | Free |
| Size | 43 MB | 116 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [itch koch](https://appshunter.io/developer/1893800961) | [MARTIN BERNT ANDERSSON](https://appshunter.io/developer/6784499129) |

## What reviewers say

### Koch

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

**Features:** macOS Compatibility

**In-app purchases:** none


### ChessImprover

[App page](https://appshunter.io/ios/app/chessimprover/id6784499127)

Enhance your chess skills with a comprehensive training app. Play with an AI coach, solve thousands of puzzles, build opening repertoires, and master endgames. All features run offline on your device.

**Highlights:** AI coach with spoken commentary, Adjustable engine strength (500-2900 Elo), Game review with plain English explanations, 23,000 tactical puzzles, Opening repertoire builder, Endgame drills, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Koch free?

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

### Is ChessImprover free?

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

### Do Koch or ChessImprover have ads?

Neither Koch nor ChessImprover 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.*