# SG Chess vs ChessKnock

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

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

## The numbers

| Metric | SG Chess | ChessKnock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 169 MB | 36 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [OneTurf Universe](https://appshunter.io/developer/1751872647) | [West East Labs LLC](https://appshunter.io/developer/1699931923) |

## What reviewers say

### SG Chess

[App page](https://appshunter.io/ios/app/sg-chess/id6739932129)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChessKnock

[App page](https://appshunter.io/ios/app/chessknock/id6746472712)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $1.99 | one-time |


## Frequently asked questions

### Is SG Chess free?

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

### Is ChessKnock free?

ChessKnock is free to download, with in-app purchases available.

### Do SG Chess or ChessKnock have ads?

Neither SG Chess nor ChessKnock 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.*