# The Knight's Mission vs Chess Notation Trainer Pro

The clearest difference is price: The Knight's Mission at Free against Chess Notation Trainer Pro's $4.99. The Knight's Mission also leads on iOS requirement (15.5 vs 18.6). Chess Notation Trainer Pro's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

The Knight's Mission is free to download; Chess Notation Trainer Pro costs $4.99 up front. The Knight's Mission sells 1 one-off in-app purchase. Chess Notation Trainer Pro asks for nothing beyond the download.

The Knight's Mission ships an update every 26 months, Chess Notation Trainer Pro every 6 days. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | The Knight's Mission | Chess Notation Trainer Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 26 months | **Every 6 days** |
| Size | 14 MB | 26 MB |
| Requires iOS | **15.5** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Masayuki Ishizuka](https://appshunter.io/developer/330537039) | [Nishat Majid](https://appshunter.io/developer/1727207034) |

## What reviewers say

### The Knight's Mission

[App page](https://appshunter.io/ios/app/the-knights-mission/id6446790012)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PREMIUM | $0.99 | 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 The Knight's Mission free?

The Knight's Mission 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 The Knight's Mission or Chess Notation Trainer Pro have ads?

The Knight's Mission shows ads; Chess Notation Trainer Pro does not.

### Which is updated more often, The Knight's Mission or Chess Notation Trainer Pro?

The Knight's Mission ships an update every 26 months, and Chess Notation Trainer Pro every 6 days. Most recently, The Knight's Mission was updated on October 25, 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.*