# ClassNK Directory vs PSC Ready

ClassNK Directory and PSC Ready 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.

ClassNK Directory ships an update every 10 months, PSC Ready every 11 months. The most recent releases landed on September 16, 2026 and August 10, 2026 respectively.

## The numbers

| Metric | ClassNK Directory | PSC Ready |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/classnk-directory/id956676438/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 11 months |
| Monetization | Free | — |
| Size | 15 MB | 31 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [NIPPON KAIJI KYOKAI GENERAL INCORPORATED FOUNDATION](https://appshunter.io/developer/956676437) | [Bureau Veritas Marine & Offshore](https://appshunter.io/developer/1437614422) |

## What reviewers say

### ClassNK Directory

[App page](https://appshunter.io/ios/app/classnk-directory/id956676438)

Easily find contact details for a global network of survey offices. Search for locations by port, country, or keywords, and view them on Google Maps.

**Highlights:** Worldwide office network access, Contact information for global offices, Search offices by port, country, or keywords, View office locations on Google Maps, Access staff details

**Features:** macOS Compatibility

**In-app purchases:** none


### PSC Ready

[App page](https://appshunter.io/ios/app/psc-ready/id1318731256)

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

**In-app purchases:** none


## Frequently asked questions

### Is ClassNK Directory free?

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

### Is PSC Ready free?

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

### Do ClassNK Directory or PSC Ready have ads?

Neither ClassNK Directory nor PSC Ready shows ads.

### Which is updated more often, ClassNK Directory or PSC Ready?

ClassNK Directory ships an update every 10 months, and PSC Ready every 11 months. Most recently, ClassNK Directory was updated on September 16, 2026 and PSC Ready on August 10, 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.*