# Chess Log vs Opening Prep

The clearest difference is update cadence: Opening Prep at every 4 days against Chess Log's every 6 weeks. 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.

Chess Log ships an update every 6 weeks, Opening Prep every 4 days. The most recent releases landed on October 9, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Chess Log | Opening Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/chess-log/id6737934787/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 198 MB | 5 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Luis De Zutter](https://appshunter.io/developer/1778557315) | [Roman Bogatenko](https://appshunter.io/developer/1896131806) |

## What reviewers say

### Chess Log

[App page](https://appshunter.io/ios/app/chess-log/id6737934787)

Catalog, organize, and analyze your chess games with a clean interface. Save and annotate moves, explore openings, and get move suggestions to improve your play. Elevate your chess strategy with powerful analytical tools.

**Highlights:** Game catalog and organization, Detailed move annotation, Opening explorer, Move suggestions, PGN editor

**In-app purchases:** none


### Opening Prep

[App page](https://appshunter.io/ios/app/opening-prep-chess-trainer/id6765937133)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chess Log free?

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

### Is Opening Prep free?

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

### Do Chess Log or Opening Prep have ads?

Neither Chess Log nor Opening Prep shows ads.

### Which is updated more often, Chess Log or Opening Prep?

Chess Log ships an update every 6 weeks, and Opening Prep every 4 days. Most recently, Chess Log was updated on October 9, 2026 and Opening Prep on October 28, 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.*