# Memory Brain Game Online vs Chess Notation Trainer Pro

The clearest difference is price: Memory Brain Game Online at Free against Chess Notation Trainer Pro's $4.99. Memory Brain Game Online also leads on iOS requirement (13.0 vs 18.6). Chess Notation Trainer Pro's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

Memory Brain Game Online is free to download; Chess Notation Trainer Pro costs $4.99 up front. Memory Brain Game Online sells 2 one-off in-app purchases. Chess Notation Trainer Pro asks for nothing beyond the download.

Memory Brain Game Online ships an update every 7 months, Chess Notation Trainer Pro every 6 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Memory Brain Game Online | Chess Notation Trainer Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 6 days** |
| Size | 227 MB | 26 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tran Viet](https://appshunter.io/developer/1498967947) | [Nishat Majid](https://appshunter.io/developer/1727207034) |

## What reviewers say

### Memory Brain Game Online

[App page](https://appshunter.io/ios/app/memory-brain-game-online/id6450265200)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Hints | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |


### Chess Notation Trainer Pro

[App page](https://appshunter.io/ios/app/chess-notation-trainer-pro/id6478752238)

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

**In-app purchases:** none


## Frequently asked questions

### Is Memory Brain Game Online free?

Memory Brain Game Online is free to download, with in-app purchases available.

### Is Chess Notation Trainer Pro free?

Chess Notation Trainer Pro costs $4.99, with no in-app purchases.

### Do Memory Brain Game Online or Chess Notation Trainer Pro have ads?

Memory Brain Game Online shows ads; Chess Notation Trainer Pro does not.

### Which is updated more often, Memory Brain Game Online or Chess Notation Trainer Pro?

Memory Brain Game Online ships an update every 7 months, and Chess Notation Trainer Pro every 6 days. Most recently, Memory Brain Game Online was updated on October 27, 2026 and Chess Notation Trainer Pro on October 30, 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.*