Learn maritime and track your progress
Learn maritime with interactive quizzes and detailed flag information. Test knowledge with randomized questions. View Morse code signals using the phone’s flashlight. Track progress and identify areas for improvement through analytics.
Showing 161–180 of 1,000 ranked alternatives.
Jefferson Felipe Miranda
And play
Allows users to identify from countries and regions. Players select from increasing difficulty levels. Features include flag images, hints, and score tracking. Users can compete against others or play solo.
Qvalitech Engineering OU
Quiz countries by flag and map
Test geography knowledge with quizzes on , , and country shapes. Select from various question types including flag identification, capital recognition, and map shape matching. Track progress and challenge global knowledge.
Black Cat Systems
Learn Morse code with practice modules.
The app offers modules for learning Morse code, including character recognition and copying practice. Users can customize settings like speed, pitch, and character groups for personalized learning.
Smirnov Yury
Study COLREGs rules with flashcards
Learn COLREGs through flashcards organized by specific rules. Answer questions to reinforce knowledge. Automatically save progress and reset results as needed. Track learning progress over time.
Nautica SIA
Learn chartwork and safety rules
Learn fundamentals with interactive lessons on chartwork, safety, buoyage, light signals, shapes, sound signals, meteorology, GMDSS, and anchoring. Take quizzes to test knowledge and track progress.
Lars Hansen
Learn flags, morse code, and spelling
Learn flag signals and their meanings with interactive quizzes and explanations. Practice Morse code and flag alphabets in multiple languages. Send and receive semaphore signals with visual guides for both sending and receiving.
Yurii Kobets
Play and learn country
Test your knowledge of with a trivia game that includes 158 and 50 dependent territories. Choose from three difficulty levels. Guess based on country names or images.
Snecadev
Amateur radio reference for all users.
This reference app provides quick access to amateur radio band limits, country codes, band plans, radiogram messages, grid squares, and time. It also includes the RST system, Morse code, phonetic alphabet, unit abbreviations, and metric prefixes.
Andrey Solovyev
Learn by country and territory
Learn national through a game format. Identify by country names. Group into with specific countries. Test knowledge with quizzes. View flag details and country information. Share scores with friends.
晓乾 郑
Record and change your effects
Record and modify with real-time sound effects and reverberation. Change gender, apply filters, and loop playback. Capture and replay altered audio without manual recording.
昌飞 佘
Send encrypted messages using code
Encrypt and decrypt messages using code. Send encoded text via email or messaging apps. Include customizable symbols and support for multiple languages.
Exam Prep OU
Study questions and track progress
Access a comprehensive question bank covering all OCN topics. Take interactive quizzes to test knowledge. Review detailed explanations for each question. Track progress and identify areas needing improvement.
HIROAKI TSUKASHIMA
Make, read, play, and learn code
Create, read, and play code with this . Input text or type to generate codes. Interpret signals from light or sound. Take quizzes to practice decoding code strings. Learn through interactive exercises and feedback.
Mihir Sonani
Track ships and view real-time data
Track live positions and vessel details with real-time traffic data. View accurate updates on vessel movements across seas, rivers, and ports. Access detailed information about specific ships and monitor maritime activity.
Roman Sorochak
Scan codes, documents, and track history
Scan QR codes, barcodes, and documents with an all-in-one . Decode 1D and 2D codes, including WiFi networks. Save scan history and access past entries. Use flashlight for low-light scanning. Share or copy scanned data.
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