Maritime Knowledge vs OpenedDoor Exam
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Maritime Knowledge
This application offers comprehensive marine education resources, including structured study materials and video lectures from experienced professors. It aims to provide accessible, quality learning for marine students worldwide, saving them time and energy.
- Online study materials
- Video lectures
- Structured curriculum
- Experienced professors
- Accessible worldwide
- Student-friendly interface
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"Maritime Knowledge Application" is a result of complete efforts of research in the field of Marine education. The main aim of this application is provide quality education to Marine students. We have a well course comprising online study materials, Video lectures on our website as well as Mobile app. For using our Applications, Student's save their time and energy by providing well structured and simplified study materials and video lectures by well experienced professors. This will allow the students to access the quality education by anywhere in the world. However, Maritime Knowledge Application is a students friendly and also completely free application.
OpenedDoor Exam
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Opened Door is a purpose-built tool for maritime training centers to provide seafarers with quick and secure access to exam schedules and online assessments. Key Features: - View upcoming exam schedules - Take online assessments directly from your device - No data collection – privacy-focused - Lightweight, WebView-based application
Screenshots
Verdict
The clearest difference is update cadence: OpenedDoor Exam at weekly against Maritime Knowledge's monthly. Maritime Knowledge's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Maritime Knowledge ships an update monthly, OpenedDoor Exam weekly. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.
| Parameter | Maritime Knowledge | OpenedDoor Exam |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Monthly | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 40 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | MTECH COMMERCE AND BUSINESS SOLUTIONS PRIVATE LIMITED | YAMMOBOTS COMPANY LIMITED |
In-app purchases
Maritime Knowledge
No in-app purchases
OpenedDoor Exam
No in-app purchases
Questions
Is Maritime Knowledge free?
Is OpenedDoor Exam free?
Do Maritime Knowledge or OpenedDoor Exam have ads?
Which is updated more often, Maritime Knowledge or OpenedDoor Exam?
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