# Chess Notation Lab vs Board Brain

The clearest difference is in-app purchases: Board Brain at none against Chess Notation Lab's 1. Board Brain also leads on iOS requirement (15.0 vs 18.6). Chess Notation Lab's advantage is update cadence (every 3 days vs every 6 days). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Chess Notation Lab against 5.0 for Board Brain. Both are backed by a comparable volume of ratings — 6 and 3 respectively.

Chess Notation Lab ships an update every 3 days, Board Brain every 6 days. The most recent releases landed on September 7, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Chess Notation Lab | Board Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/chess-notation-lab/id6480255515/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/board-brain/id6482852806/reviews) |
| Number of ratings | **6** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 26 MB | 2 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nishat Majid](https://appshunter.io/developer/1727207034) | [Selvarajan Thangavel](https://appshunter.io/developer/1482739883) |

## What reviewers say

### Chess Notation Lab

[App page](https://appshunter.io/ios/app/chess-notation-lab/id6480255515)

Master chess board coordinates and piece movement with this training app. Improve your ability to visualize moves, read notation, and understand square colors. Designed to enhance your chess calculations and potentially boost your rating.

**Highlights:** Identify squares by coordinate, Fluid piece movement visualization, Translate moves to notation, Identify square color, Orient on the board, Speed up calculation, Blind chess practice

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $9.99 | one-time |


### Board Brain

[App page](https://appshunter.io/ios/app/board-brain/id6482852806)

This app helps chess players of all levels enhance their skills through interactive games and exercises. It focuses on mastering chessboard coordinates, understanding piece movements, and recognizing square colors to improve overall game vision.

**Highlights:** Interactive games, Skill-building exercises, Chessboard coordinate mastery, Piece movement understanding, Square color recognition

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chess Notation Lab free?

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

### Is Board Brain free?

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

### Which has better reviews, Chess Notation Lab or Board Brain?

Chess Notation Lab and Board Brain are both rated 5.0 out of 5 on the App Store, from 6 and 3 ratings respectively.

### Do Chess Notation Lab or Board Brain have ads?

Neither Chess Notation Lab nor Board Brain shows ads.

### Which is updated more often, Chess Notation Lab or Board Brain?

Chess Notation Lab ships an update every 3 days, and Board Brain every 6 days. Most recently, Chess Notation Lab was updated on September 7, 2026 and Board Brain on September 12, 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.*