ClassNK Directory vs Class surveyor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ClassNK Directory
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.
- 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
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The ClassNK Directory App gives you easy access to our worldwide office network at your fingertips. ClassNK is one of the leading classification societies, and working towards safer and greener future. To be connected with ClassNK's global survey offices has never been easier with this App. Key features: - Accessing contact information (such as address, telephone number, email address and staff) for ClassNK's global offices at any time. - Searching for office locations by port, country or keywords. - Searching survey office, port by using google maps.
Class surveyor
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Class surveyor - it's our new assistant app for surveyors, shipowners, UTM operators. Depending of ship age and type - our app will privide you scope of ship inspections and thickness measurements in accordance with IACS Requrements. App include LSA Code and SOLAS requirements for liferafts and lifeboats. Try to use our free app in your marine duties - it will help you!
Screenshots
Verdict
The clearest difference is iOS requirement: Class surveyor at 11.0 against ClassNK Directory's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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, Class surveyor every 7 months. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.
| Parameter | ClassNK Directory | Class surveyor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 58 MB |
| Age rating | 17+ | 4+ |
| Developer | NIPPON KAIJI KYOKAI GENERAL INCORPORATED FOUNDATION | OLEKSANDR IZERGIN |
In-app purchases
ClassNK Directory
No in-app purchases
Class surveyor
No in-app purchases
Questions
Is ClassNK Directory free?
Is Class surveyor free?
Do ClassNK Directory or Class surveyor have ads?
Which is updated more often, ClassNK Directory or Class surveyor?
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