# KR Directory vs ClassNK Onboard Image Logger

KR Directory and ClassNK Onboard Image Logger are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

KR Directory ships an update every 8 months, ClassNK Onboard Image Logger every 9 months. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | KR Directory | ClassNK Onboard Image Logger |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 9 months |
| Size | 24 MB | 48 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Korean Register](https://appshunter.io/developer/600805564) | [NIPPON KAIJI KYOKAI GENERAL INCORPORATED FOUNDATION](https://appshunter.io/developer/956676437) |

## What reviewers say

### KR Directory

[App page](https://appshunter.io/ios/app/kr-directory/id1544688577)

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

**In-app purchases:** none


### ClassNK Onboard Image Logger

[App page](https://appshunter.io/ios/app/classnk-onboard-image-logger/id1614585559)

**In-app purchases:** none


## Frequently asked questions

### Is KR Directory free?

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

### Is ClassNK Onboard Image Logger free?

ClassNK Onboard Image Logger is free to download, with no in-app purchases.

### Do KR Directory or ClassNK Onboard Image Logger have ads?

Neither KR Directory nor ClassNK Onboard Image Logger shows ads.

### Which is updated more often, KR Directory or ClassNK Onboard Image Logger?

KR Directory ships an update every 8 months, and ClassNK Onboard Image Logger every 9 months. Most recently, KR Directory was updated on October 21, 2026 and ClassNK Onboard Image Logger on October 25, 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.*