# Chess Acuity vs Chessigma

The clearest difference is in-app purchases: Chess Acuity at none against Chessigma's 2. Chess Acuity also leads on update cadence (every 4 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chessigma sells 2 in-app purchases, starting at $14.00 per month. Chess Acuity asks for nothing beyond the download.

Chess Acuity ships an update every 4 days, Chessigma every 5 weeks. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Chess Acuity | Chessigma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (54 ratings)](https://appshunter.io/ios/app/chessigma/id6791621546/reviews)** |
| Number of ratings | — | **54** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 weeks |
| Monetization | — | Free |
| Size | 135 MB | 12 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sigfus Bjarnason](https://appshunter.io/developer/1896327101) | [Chessigma](https://appshunter.io/developer/6791621548) |

## What reviewers say

### Chess Acuity

[App page](https://appshunter.io/ios/app/chess-acuity/id6788771638)

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

**In-app purchases:** none


### Chessigma

[App page](https://appshunter.io/ios/app/chessigma/id6791621546)

Analyze your chess games with detailed move-by-move feedback and personalized puzzles based on your mistakes. Improve your play with clear explanations and a powerful engine, all for free.

**Highlights:** Game review with move grading, Plain-English move explanations, Integrated Stockfish engine, Mistake-based puzzle generation, Supports Chess.com, Lichess, and PGN

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supercoach Monthly | $14.00 | per month |
| Supercoach Yearly | $97.00 | per year |


## Frequently asked questions

### Is Chess Acuity free?

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

### Is Chessigma free?

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

### Do Chess Acuity or Chessigma have ads?

Neither Chess Acuity nor Chessigma shows ads.

### Which is updated more often, Chess Acuity or Chessigma?

Chess Acuity ships an update every 4 days, and Chessigma every 5 weeks. Most recently, Chess Acuity was updated on October 4, 2026 and Chessigma on October 15, 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.*