# Chess Prep Pro Openings vs ChessBase Mobile Chess

The clearest difference is rating: Chess Prep Pro Openings at 4.5 against ChessBase Mobile Chess's 2.9. Chess Prep Pro Openings also leads on review sentiment (75% vs 41%) and update cadence (fortnightly vs every 6 months). ChessBase Mobile Chess's advantage is ads (none vs shown). On price, ratings volume, in-app purchases and monetization model 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 and ChessBase Mobile Chess sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Chess Prep Pro Openings holds the better App Store score, 4.5 against 2.9. Both are backed by a comparable volume of ratings — 22 and 18 respectively. Written reviews point the same way: 75% of Chess Prep Pro Openings's written reviews are positive against 41% of ChessBase Mobile Chess's.

Chess Prep Pro Openings ships an update fortnightly, ChessBase Mobile Chess every 6 months. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Chess Prep Pro Openings | ChessBase Mobile Chess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (22 ratings)](https://appshunter.io/ios/app/chess-prep-pro-openings/id1606629475/reviews)** | [2.9 (18 ratings)](https://appshunter.io/ios/app/chessbase-mobile-chess/id6739000093/reviews) |
| Number of ratings | **22** | 18 |
| Positive reviews | **75.0% of reviews** | 40.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 6 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 214 MB | 1 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tomasz Bogun](https://appshunter.io/developer/1502902123) | [ChessBase GmbH](https://appshunter.io/developer/417720797) |

## What reviewers say

### 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 |


### ChessBase Mobile Chess

[App page](https://appshunter.io/ios/app/chessbase-mobile-chess/id6739000093)

Access a vast chess game database, save and analyze your own games, and practice openings. This app offers advanced notation and sharing features, with a free tier and optional premium upgrades for more extensive cloud storage and search capabilities.

**Highlights:** Access 13+ million chess games, Save and sync personal game databases, Analyze games with built-in engine, Live opening book statistics, Create and practice opening repertoires, Advanced game notation and sharing, PGN file compatibility

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessBase Premium (Monthly) | $3.99 | per month |


## Frequently asked questions

### Is Chess Prep Pro Openings free?

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

### Is ChessBase Mobile Chess free?

ChessBase Mobile Chess is free to download, with in-app purchases available.

### Which has better reviews, Chess Prep Pro Openings or ChessBase Mobile Chess?

Chess Prep Pro Openings is rated higher. Chess Prep Pro Openings averages 4.5 out of 5 from 22 ratings, while ChessBase Mobile Chess averages 2.9 from 18 ratings.

### Do Chess Prep Pro Openings or ChessBase Mobile Chess have ads?

Chess Prep Pro Openings shows ads; ChessBase Mobile Chess does not.

### Which is updated more often, Chess Prep Pro Openings or ChessBase Mobile Chess?

Chess Prep Pro Openings ships an update fortnightly, and ChessBase Mobile Chess every 6 months. Most recently, Chess Prep Pro Openings was updated on October 19, 2026 and ChessBase Mobile Chess on October 18, 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.*