# Chess Opener PRO vs BookMoves

The clearest difference is price: BookMoves at Free against Chess Opener PRO's $8.99. BookMoves also leads on iOS requirement (13.0 vs 15.1). Chess Opener PRO's advantage is review sentiment (76% vs 50%) and ratings volume (80 vs 4). On rating, update cadence, ads and in-app purchases there is nothing between them.

BookMoves is free to download; Chess Opener PRO costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.4 for Chess Opener PRO against 4.5 for BookMoves. That said, the two scores are not equally well evidenced: Chess Opener PRO has 80 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 76% of Chess Opener PRO's written reviews are positive against 50% of BookMoves's.

Chess Opener PRO ships an update every 5 weeks, BookMoves every 3 weeks. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Chess Opener PRO | BookMoves |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | [4.4 (80 ratings)](https://appshunter.io/ios/app/chess-opener-pro/id1489282483/reviews) | **[4.5 (4 ratings)](https://appshunter.io/ios/app/bookmoves/id6469711333/reviews)** |
| Number of ratings | **80** | 4 |
| Positive reviews | **75.9% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 149 MB | 70 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stanislav Basovnik](https://appshunter.io/developer/1469334974) | [Regulus Team s.r.o.](https://appshunter.io/developer/1563166617) |

## What reviewers say

### Chess Opener PRO

[App page](https://appshunter.io/ios/app/chess-opener-pro/id1489282483)

Master chess openings with a comprehensive trainer and explorer. Analyze grandmaster repertoires, build your own opening lines, and memorize variations with interactive training. Works offline with no ads.

**Highlights:** Chess opening tree with statistics, Encyclopedia of Chess Openings (ECO), Grandmaster repertoire database, Stockfish engine analysis, Interactive opening trainer, Build and manage opening repertoire, PGN import/export

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

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent for learning openings
- 🚀 Fast and responsive
- 💡 Highly customizable repertoires
- 👍 Intuitive and easy to use
- 👍 Great for serious players

**What reviewers complain about**

- 🐛 Crashes quite often
- 🐛 Not intuitive to use
- 🐛 Invalid PGN import
- 🐛 Does not train beyond opening position
- 🐛 Repeats same variation

**Reported bugs**

- Invalid PGN import
- Crashes quite often
- Repeats same variation
- Cannot review lines while training
- App not functioning with iOS 16.7.4

**Requested features**

- Include position setting
- Start study from a later position
- Multiple folders for simultaneous practice
- Option to switch between figure visibility modes (normal, queen pieces, none)
- Blindfold practice option


### BookMoves

[App page](https://appshunter.io/ios/app/bookmoves/id6469711333)

Master chess openings with a unique blend of theory, computer science, and spaced repetition. Memorize hundreds of variants for both sides and transition from rote learning to intuitive application. Overcome the forgetting curve with an innovative technique for lasting mastery.

**Highlights:** Chess opening theory, Spaced repetition learning, Hundreds of chess variants, Statistical probabilities, Integrated scoring system, Algorithmic improvement

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chess Opener PRO free?

Chess Opener PRO costs $8.99, with no in-app purchases.

### Is BookMoves free?

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

### Which has better reviews, Chess Opener PRO or BookMoves?

BookMoves is rated higher. Chess Opener PRO averages 4.4 out of 5 from 80 ratings, while BookMoves averages 4.5 from 4 ratings.

### Do Chess Opener PRO or BookMoves have ads?

Neither Chess Opener PRO nor BookMoves shows ads.

### Which is updated more often, Chess Opener PRO or BookMoves?

Chess Opener PRO ships an update every 5 weeks, and BookMoves every 3 weeks. Most recently, Chess Opener PRO was updated on November 11, 2026 and BookMoves on November 3, 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.*