# zChess vs Chaal

The clearest difference is update cadence: Chaal at every 4 days against zChess's every 9 days. Chaal also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. zChess sells 2 in-app purchases, starting at $4.99 per month and Chaal sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

zChess ships an update every 9 days, Chaal every 4 days. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | zChess | Chaal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Size | 14 MB | 14 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Benjamin Zobrist](https://appshunter.io/developer/1511619762) | [Hisa Hashisaka](https://appshunter.io/developer/6772068208) |

## What reviewers say

### zChess

[App page](https://appshunter.io/ios/app/zchess/id6754181257)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $4.99 | per month |
| Yearly Access | $49.99 | per year |


### Chaal

[App page](https://appshunter.io/ios/app/chaal-chess-position-analyzer/id6796217523)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chaal Pro | $2.99 | per month |


## Frequently asked questions

### Is zChess free?

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

### Is Chaal free?

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

### Do zChess or Chaal have ads?

Neither zChess nor Chaal shows ads.

### Which is updated more often, zChess or Chaal?

zChess ships an update every 9 days, and Chaal every 4 days. Most recently, zChess was updated on October 25, 2026 and Chaal on October 7, 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.*