# DigiGone Mobile vs ClassNK Directory

The clearest difference is iOS requirement: DigiGone Mobile at 13.0 against ClassNK Directory's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

DigiGone Mobile ships an update every 6 months, ClassNK Directory every 10 months. The most recent releases landed on September 28, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | DigiGone Mobile | ClassNK Directory |
| --- | --- | --- |
| 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 6 months** | Every 10 months |
| Monetization | — | Free |
| Size | 5 MB | 15 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Diginonymous, LLC](https://appshunter.io/developer/952978928) | [NIPPON KAIJI KYOKAI GENERAL INCORPORATED FOUNDATION](https://appshunter.io/developer/956676437) |

## What reviewers say

### DigiGone Mobile

[App page](https://appshunter.io/ios/app/digigone-mobile/id952978929)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is DigiGone Mobile free?

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

### Is ClassNK Directory free?

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

### Do DigiGone Mobile or ClassNK Directory have ads?

Neither DigiGone Mobile nor ClassNK Directory shows ads.

### Which is updated more often, DigiGone Mobile or ClassNK Directory?

DigiGone Mobile ships an update every 6 months, and ClassNK Directory every 10 months. Most recently, DigiGone Mobile was updated on September 28, 2026 and ClassNK Directory on October 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.*