# Flat Chess Board vs Chess Notation Lab

The clearest difference is review sentiment: Chess Notation Lab at 100% against Flat Chess Board's 50%. Chess Notation Lab also leads on rating (5.0 vs 2.0) and update cadence (every 3 days vs every 29 months). Flat Chess Board's advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 18.6). On price, ads and device support there is nothing between them.

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

Chess Notation Lab holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Chess Notation Lab has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Flat Chess Board's written reviews are positive against 100% of Chess Notation Lab's.

Flat Chess Board ships an update every 29 months, Chess Notation Lab every 3 days. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Flat Chess Board | Chess Notation Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/flat-chess-board/id1064777220/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/chess-notation-lab/id6480255515/reviews)** |
| Number of ratings | 1 | **6** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 26 MB |
| Requires iOS | **10.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Honda](https://appshunter.io/developer/397681963) | [Nishat Majid](https://appshunter.io/developer/1727207034) |

## What reviewers say

### Flat Chess Board

[App page](https://appshunter.io/ios/app/flat-chess-board/id1064777220)

Play chess against another person on a digital board. Move pieces by selecting or dragging them. Features include undo, redo, and reversing the board.

**Highlights:** Two-player mode, Piece selection and dragging, Undo and redo moves, Reverse board option, Start from beginning, Intuitive icon-based controls

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

**In-app purchases:** none


### 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, Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is Flat Chess Board free?

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

### Is Chess Notation Lab free?

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

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

Chess Notation Lab is rated higher. Flat Chess Board averages 2.0 out of 5 from 1 ratings, while Chess Notation Lab averages 5.0 from 6 ratings.

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

Neither Flat Chess Board nor Chess Notation Lab shows ads.

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

Flat Chess Board ships an update every 29 months, and Chess Notation Lab every 3 days. Most recently, Flat Chess Board was updated on October 1, 2026 and Chess Notation Lab on October 14, 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.*