# Chess Notation Trainer Pro vs ChessRiddle

The clearest difference is price: ChessRiddle at Free against Chess Notation Trainer Pro's $4.99. ChessRiddle also leads on iOS requirement (15.0 vs 18.6). Chess Notation Trainer Pro's advantage is update cadence (every 6 days vs every 6 weeks). On ads, in-app purchases and device support there is nothing between them.

ChessRiddle is free to download; Chess Notation Trainer Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Chess Notation Trainer Pro ships an update every 6 days, ChessRiddle every 6 weeks. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Chess Notation Trainer Pro | ChessRiddle |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 6 weeks |
| Size | 26 MB | 98 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nishat Majid](https://appshunter.io/developer/1727207034) | [Felix Andreas Beck](https://appshunter.io/developer/1879081669) |

## What reviewers say

### 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


### ChessRiddle

[App page](https://appshunter.io/ios/app/chessriddle-chess-trainer/id6759503028)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chess Notation Trainer Pro free?

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

### Is ChessRiddle free?

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

### Do Chess Notation Trainer Pro or ChessRiddle have ads?

Neither Chess Notation Trainer Pro nor ChessRiddle shows ads.

### Which is updated more often, Chess Notation Trainer Pro or ChessRiddle?

Chess Notation Trainer Pro ships an update every 6 days, and ChessRiddle every 6 weeks. Most recently, Chess Notation Trainer Pro was updated on October 14, 2026 and ChessRiddle on October 13, 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.*