# A.C.E vs Chess Lab

The clearest difference is in-app purchases: A.C.E at none against Chess Lab's 1. A.C.E also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.6). On price, update cadence and device support there is nothing between them.

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

A.C.E ships an update weekly, Chess Lab every 4 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | A.C.E | Chess Lab |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 20 MB | 64 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alastair McNeill](https://appshunter.io/developer/1555922221) | [koji ozono](https://appshunter.io/developer/1826482515) |

## What reviewers say

### A.C.E

[App page](https://appshunter.io/ios/app/ace/id6476161902)

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

**In-app purchases:** none


### Chess Lab

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

Analyze chess games with a powerful AI engine, practice against 30 difficulty levels, or watch live top-tier matches. Save and replay games, import PGNs, and customize your board view for a premium experience.

**Highlights:** AI-powered game analysis, 30 difficulty levels for CPU play, Local 2-player mode, Lichess spectating with channel selection, Save and replay games, PGN import, Customizable 2D/2.5D board views

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chess Lab Pro | $2.99 | one-time |


## Frequently asked questions

### Is A.C.E free?

A.C.E is free to download, with no in-app purchases.

### Is Chess Lab free?

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

### Do A.C.E or Chess Lab have ads?

Chess Lab shows ads; A.C.E does not.

### Which is updated more often, A.C.E or Chess Lab?

A.C.E ships an update weekly, and Chess Lab every 4 days. Most recently, A.C.E was updated on November 4, 2026 and Chess Lab on November 5, 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.*