# Chess9 vs Gambits Edge

The clearest difference is in-app purchases: Chess9 at none against Gambits Edge's 5. Chess9 also leads on ads (none vs shown). Gambits Edge's advantage is update cadence (weekly vs every 2 months) and iOS requirement (15.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Gambits Edge sells 5 in-app purchases, starting at $3.99 per month. Chess9 asks for nothing beyond the download.

Chess9 ships an update every 2 months, Gambits Edge weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Chess9 | Gambits Edge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gambits-edge-chess-scanner/id6769525049/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 11 MB | 175 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shashwat Patel](https://appshunter.io/developer/1873309489) | [Box of Otters, LLC](https://appshunter.io/developer/1895484967) |

## What reviewers say

### Chess9

[App page](https://appshunter.io/ios/app/chess9/id6758634392)

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

**In-app purchases:** none


### Gambits Edge

[App page](https://appshunter.io/ios/app/gambits-edge-chess-scanner/id6769525049)

Instantly analyze chess positions by scanning any board with your device's camera. Receive human-style coaching that explains moves, detects traps, and offers tactical puzzles. Suitable for all skill levels, from beginners to advanced players.

**Highlights:** Instant board scanning via camera, Plain-English move explanations, Real-time trap detection, Full Stockfish engine analysis, Opening explorer, Daily tactical puzzles, Play against engine

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Gambits Edge pro Yearly | $29.99 | per year |
| 10 Scan Pack | $0.99 | one-time |
| 50 Scan Pack | $2.99 | one-time |
| Gambits Edge Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Chess9 free?

Chess9 is free to download, with no in-app purchases.

### Is Gambits Edge free?

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

### Do Chess9 or Gambits Edge have ads?

Gambits Edge shows ads; Chess9 does not.

### Which is updated more often, Chess9 or Gambits Edge?

Chess9 ships an update every 2 months, and Gambits Edge weekly. Most recently, Chess9 was updated on October 31, 2026 and Gambits Edge on October 31, 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.*