# Chess Prep Pro Openings vs chess.ceo

The clearest difference is rating: chess.ceo at 5.0 against Chess Prep Pro Openings's 4.5. chess.ceo also leads on ads (none vs shown) and review sentiment (100% vs 75%). Chess Prep Pro Openings's advantage is ratings volume (22 vs 2). On price, update cadence, 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 chess.ceo sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

chess.ceo holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Chess Prep Pro Openings has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 75% of Chess Prep Pro Openings's written reviews are positive against 100% of chess.ceo's.

Chess Prep Pro Openings ships an update fortnightly, chess.ceo every 4 weeks. The most recent releases landed on October 19, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Chess Prep Pro Openings | chess.ceo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (22 ratings)](https://appshunter.io/ios/app/chess-prep-pro-openings/id1606629475/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chessceo/id6759229388/reviews)** |
| Number of ratings | **22** | 2 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 214 MB | 151 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tomasz Bogun](https://appshunter.io/developer/1502902123) | [CHESSGM OU](https://appshunter.io/developer/1877558592) |

## 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 |


### chess.ceo

[App page](https://appshunter.io/ios/app/chessceo/id6759229388)

This app provides professional chess analysis tools, including engine analysis, a vast game database, and opponent preparation features. It allows users to analyze games, study master-level games, and follow live tournaments. An optional subscription unlocks advanced features like offline database access and a distraction-free analysis board.

**Highlights:** Engine analysis with Stockfish, 14 million master-level game database, Opponent search and repertoire study, Live tournament broadcasts, Full game analysis with PGN import, Organize and sync PGN files, Chess960 and chess clock

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CEO tier | $5.99 | per month |
| Cloud Credits | $8.99 | one-time |


## Frequently asked questions

### Is Chess Prep Pro Openings free?

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

### Is chess.ceo free?

chess.ceo is free to download, with in-app purchases available.

### Which has better reviews, Chess Prep Pro Openings or chess.ceo?

chess.ceo is rated higher. Chess Prep Pro Openings averages 4.5 out of 5 from 22 ratings, while chess.ceo averages 5.0 from 2 ratings.

### Do Chess Prep Pro Openings or chess.ceo have ads?

Chess Prep Pro Openings shows ads; chess.ceo does not.

### Which is updated more often, Chess Prep Pro Openings or chess.ceo?

Chess Prep Pro Openings ships an update fortnightly, and chess.ceo every 4 weeks. Most recently, Chess Prep Pro Openings was updated on October 19, 2026 and chess.ceo on October 20, 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.*