# Chess Tablebase for Stockfish vs Chess Prep Pro Openings

The clearest difference is in-app purchases: Chess Tablebase for Stockfish at none against Chess Prep Pro Openings's 3. Chess Tablebase for Stockfish also leads on ads (none vs shown) and rating (4.8 vs 4.5). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Chess Prep Pro Openings sells 3 in-app purchases, starting at $3.99 per month. Chess Tablebase for Stockfish asks for nothing beyond the download.

Chess Tablebase for Stockfish holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 21 and 22 respectively. Written reviews point the same way: 83% of Chess Tablebase for Stockfish's written reviews are positive against 75% of Chess Prep Pro Openings's.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Chess Tablebase for Stockfish | Chess Prep Pro Openings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (21 ratings)](https://appshunter.io/ios/app/chess-tablebase-for-stockfish/id1183121054/reviews)** | [4.5 (22 ratings)](https://appshunter.io/ios/app/chess-prep-pro-openings/id1606629475/reviews) |
| Number of ratings | 21 | **22** |
| Positive reviews | **83.3% of reviews** | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 944 MB | 214 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ted Wong](https://appshunter.io/developer/570426131) | [Tomasz Bogun](https://appshunter.io/developer/1502902123) |

## 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 analysis. Seamlessly import files into a Stockfish chess app to instantly determine win or draw outcomes for specific positions. Includes pre-installed 5-men tablebase files and instructions for importing your own.

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

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

**In-app purchases:** none


### Chess Prep Pro Openings

[App page](https://appshunter.io/ios/app/chess-prep-pro-openings/id1606629475)

Master chess openings by building custom repertoires and training your memory. Analyze opponent moves, discover blind spots, and utilize an advanced engine for in-depth preparation. Expand your knowledge with downloadable repertoires and import/export PGNs.

**Highlights:** Custom chess opening repertoires, Repertoire training and memory sharpening, Blind spot finder against player games, Chess openings player database, Advanced StockFish engine analysis, Downloadable and importable repertoires

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly premium subscription | $3.99 | per month |
| Yearly premium | $24.99 | per year |
| Lifetime Premium | $59.99 | one-time |


## Frequently asked questions

### Is Chess Tablebase for Stockfish free?

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

### Is Chess Prep Pro Openings free?

Chess Prep Pro Openings is free to download, with in-app purchases available.

### Which has better reviews, Chess Tablebase for Stockfish or Chess Prep Pro Openings?

Chess Tablebase for Stockfish is rated higher. Chess Tablebase for Stockfish averages 4.8 out of 5 from 21 ratings, while Chess Prep Pro Openings averages 4.5 from 22 ratings.

### Do Chess Tablebase for Stockfish or Chess Prep Pro Openings have ads?

Chess Prep Pro Openings shows ads; Chess Tablebase for Stockfish does not.

### Which is updated more often, Chess Tablebase for Stockfish or Chess Prep Pro Openings?

Chess Tablebase for Stockfish ships an update fortnightly, and Chess Prep Pro Openings fortnightly. Most recently, Chess Tablebase for Stockfish was updated on November 11, 2026 and Chess Prep Pro Openings on November 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.*