# ChessWork vs GetPrincipia

The clearest difference is in-app purchases: ChessWork at none against GetPrincipia's 2. ChessWork also leads on iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. GetPrincipia sells 2 in-app purchases, starting at $6.99 per month. ChessWork asks for nothing beyond the download.

## The numbers

| Metric | ChessWork | GetPrincipia |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 63 MB | 38 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Coding Minds, Inc.](https://appshunter.io/developer/1480612283) | [Axiom 38 LLC](https://appshunter.io/developer/1887968723) |

## What reviewers say

### ChessWork

[App page](https://appshunter.io/ios/app/chesswork/id6741313204)

**Features:** macOS Compatibility

**In-app purchases:** none


### GetPrincipia

[App page](https://appshunter.io/ios/app/getprincipia/id6761139348)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $6.99 | per month |
| Annual | $44.99 | per year |


## Frequently asked questions

### Is ChessWork free?

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

### Is GetPrincipia free?

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

### Do ChessWork or GetPrincipia have ads?

Neither ChessWork nor GetPrincipia 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.*