# Chess Tablebase for Stockfish vs Chess Notation Trainer Pro

The clearest difference is price: Chess Tablebase for Stockfish at Free against Chess Notation Trainer Pro's $4.99. Chess Tablebase for Stockfish also leads on iOS requirement (14.0 vs 18.6). Chess Notation Trainer Pro's advantage is update cadence (every 6 days vs fortnightly). On ads, in-app purchases and device support there is nothing between them.

Chess Tablebase for Stockfish 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 Tablebase for Stockfish ships an update fortnightly, Chess Notation Trainer Pro every 6 days. The most recent releases landed on September 9, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Chess Tablebase for Stockfish | Chess Notation Trainer Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.8 (21 ratings)](https://appshunter.io/ios/app/chess-tablebase-for-stockfish/id1183121054/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Free | — |
| Size | 944 MB | 26 MB |
| Requires iOS | **14.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ted Wong](https://appshunter.io/developer/570426131) | [Nishat Majid](https://appshunter.io/developer/1727207034) |

## What reviewers say

### Chess Tablebase for Stockfish

[App page](https://appshunter.io/ios/app/chess-tablebase-for-stockfish/id1183121054)

Manage chess endgame tablebase files for enhanced Stockfish AI analysis. Import pre-installed or custom files, and query positions for win/draw outcomes. Ideal for serious chess players seeking to improve engine performance.

**Highlights:** Manage chess endgame tablebase files, Integrates with SmallFish iOS app, Import pre-installed 5-men tablebases, Import custom tablebase files, Query endgame positions for win/draw, Enhances Stockfish engine performance

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

**In-app purchases:** none


### 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 Chess Tablebase for Stockfish free?

Chess Tablebase for Stockfish is free to download, with no in-app purchases.

### Is Chess Notation Trainer Pro free?

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

### Do Chess Tablebase for Stockfish or Chess Notation Trainer Pro have ads?

Neither Chess Tablebase for Stockfish nor Chess Notation Trainer Pro shows ads.

### Which is updated more often, Chess Tablebase for Stockfish or Chess Notation Trainer Pro?

Chess Tablebase for Stockfish ships an update fortnightly, and Chess Notation Trainer Pro every 6 days. Most recently, Chess Tablebase for Stockfish was updated on September 9, 2026 and Chess Notation Trainer Pro on September 7, 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.*