# BookMoves vs KarpaChess

The clearest difference is update cadence: KarpaChess at every 3 days against BookMoves's every 3 weeks. BookMoves's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BookMoves ships an update every 3 weeks, KarpaChess every 3 days. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | BookMoves | KarpaChess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/bookmoves/id6469711333/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 70 MB | 171 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Regulus Team s.r.o.](https://appshunter.io/developer/1563166617) | [Mourad GHAFIRI](https://appshunter.io/developer/1896774994) |

## What reviewers say

### 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


### KarpaChess

[App page](https://appshunter.io/ios/app/karpachess/id6808091046)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BookMoves free?

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

### Is KarpaChess free?

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

### Do BookMoves or KarpaChess have ads?

Neither BookMoves nor KarpaChess shows ads.

### Which is updated more often, BookMoves or KarpaChess?

BookMoves ships an update every 3 weeks, and KarpaChess every 3 days. Most recently, BookMoves was updated on October 1, 2026 and KarpaChess on October 6, 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.*