# Chess Lab vs ChessLab

The clearest difference is in-app purchases: ChessLab at none against Chess Lab's 1. ChessLab also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

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

Chess Lab ships an update every 5 days, ChessLab weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Chess Lab | ChessLab |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 61 MB | 169 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [koji ozono](https://appshunter.io/developer/1826482515) | [Thierry Maeder](https://appshunter.io/developer/1896297738) |

## What reviewers say

### Chess Lab

[App page](https://appshunter.io/ios/app/chess-lab-arasan-ai-engine/id6757245101)

Engage in chess matches with a powerful AI engine and a user-friendly interface. Offers various game modes including online multiplayer, local play, and AI training. Analyze your games with detailed insights and replay past matches.

**Highlights:** Arasan AI engine for analysis, Online multiplayer and web invite play, Offline CPU battles with adjustable strength, Real-time evaluation and game replays, Interactive history and PGN import, 2.5D and 2D board views, Assistive move highlights

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chess Lab Pro | $1.99 | one-time |


### ChessLab

[App page](https://appshunter.io/ios/app/chesslab/id6793097336)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chess Lab free?

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

### Is ChessLab free?

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

### Do Chess Lab or ChessLab have ads?

Chess Lab shows ads; ChessLab does not.

### Which is updated more often, Chess Lab or ChessLab?

Chess Lab ships an update every 5 days, and ChessLab weekly. Most recently, Chess Lab was updated on October 24, 2026 and ChessLab on October 24, 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.*