NACRE vs Join My Ship
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NACRE
This app allows seafarers to digitally authenticate their maritime training certificates and prove their identity. It leverages blockchain technology to combat certificate forgery and streamline the crewing process.
- Digital certificate management
- Blockchain-based authenticity
- QR code identity verification
- Seafarer authentication
- Support tab for issues
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Nacre is a mobile app that seafarers will use in order to be personally authenticated and to prove authenticity of the maritime training certificates they possess. More specifically, during the crewing process the seafarer arrives at the crewing office and needs to first be authenticated and then checked for the certificates they possess. If the seafarers do not posses the appropriate certificates they cannot serve on a specific ship. There exists a problem of forgeries of such training certificates and a developed blockchain-based solution, that the Nacre app is part of, tries to mitigate this. The Nacre app has the following functionalities: 1. The seafarer logs in and navigates to the tab “My certificates”. Under this tab the list of the certificates that have been issued to the person logged in the app are displayed. These certificates are immutable and reside on a Private blockchain. The crewing office can thus verify that the displayed certificates under the “My Certificates” tab are valid and authentic. 2. When the seafarer appears at the crewing office they also need to prove their identity. In order to achieve this the admin at the crewing office using a separate web application issues a QR code challenge. The seafarer, then selects the tab “Proof of Identity” and clicks the “Scan Challenge” button. The mobile phone camera turns on and the seafarer scans the QR code displayed on the screen of the admin. The seafarer will be notified about the status of the Challenge Response and informed if their identify was verified or not. 3. A support tab is also available in case the user encounters any problems.
Join My Ship
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Join My Ship is an online job portal in the marine sector of the shipping industry. This online platform offers a focused, user-friendly connection point for candidates and employers. This app brings seafarers and ship owners together in one place and allows them to get connected conveniently. -Explore vacancies and get in touch with employers
Screenshots
Verdict
The clearest difference is in-app purchases: NACRE at none against Join My Ship's 3. NACRE also leads on iOS requirement (8.0 vs 15.0). On price, update cadence, ads and device support 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. Join My Ship sells 3 one-off in-app purchases. NACRE asks for nothing beyond the download.
NACRE ships an update every 2 months, Join My Ship every 5 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.
| Parameter | NACRE | Join My Ship |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 49 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Electi Consulting Ltd | Ashutosh Mehta |
In-app purchases
NACRE
No in-app purchases
Join My Ship
- Silver Plan$9.99
- Platinum Plan$19.99
- Gold Plan$29.99






