# SixFour Chess vs Chess Variants Studio

The clearest difference is in-app purchases: SixFour Chess at none against Chess Variants Studio's 1. Chess Variants Studio's advantage is update cadence (every 9 days vs every 2 months) and device support (3 vs 1). On price and ads there is nothing between them.

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

SixFour Chess ships an update every 2 months, Chess Variants Studio every 9 days. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | SixFour Chess | Chess Variants Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 10 MB | 8 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Adouani SAS](https://appshunter.io/developer/1635325565) | [Michael Adams](https://appshunter.io/developer/743520896) |

## What reviewers say

### SixFour Chess

[App page](https://appshunter.io/ios/app/sixfour-chess/id6755084189)

**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 | $0.99 | one-time |


## Frequently asked questions

### Is SixFour Chess free?

SixFour Chess 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 SixFour Chess or Chess Variants Studio have ads?

Neither SixFour Chess nor Chess Variants Studio shows ads.

### Which is updated more often, SixFour Chess or Chess Variants Studio?

SixFour Chess ships an update every 2 months, and Chess Variants Studio every 9 days. Most recently, SixFour Chess was updated on November 12, 2026 and Chess Variants Studio on November 8, 2026.

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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.*