This keyboard allows you to send messages using semaphore flag signals directly within any application. It also serves as an effective tool for learning the semaphore alphabet.
Semaphore Training by Thach Nguyen Xuan



33+ iOS apps & games curated and reviewed
From beginner-friendly picks to power-user tools, our semaphore list covers 33+ iPhone apps and games updated through June 2026. Compare ratings, prices, and screenshots in one place.




This keyboard allows you to send messages using semaphore flag signals directly within any application. It also serves as an effective tool for learning the semaphore alphabet.






Master maritime communication with interactive flashcards and quizzes covering nautical signal flags, semaphore, and Morse code. Learn essential navigation and safety signals based on the International Code of Signals.


Manage Ansible automation tasks directly from your iOS device. Trigger playbooks, monitor progress, and access task templates on the go. Securely connect to multiple servers with an intuitive interface for IT professionals and DevOps engineers.


This app offers secure team communication and collaboration with end-to-end encryption and private blockchain technology. It provides features like direct messaging, file sharing, and project-specific channels for real-time teamwork.


This app provides a comprehensive suite of tools, reference materials, and links for puzzle enthusiasts. It includes various decoders, timers, and extensive lists of codes, ciphers, and common data for solving complex puzzles and games.


This app allows users to manage their car wash services and memberships. It provides a convenient way to purchase washes, track wash history, and access account information.


Master Morse code with this free training application. Practice and drill each letter of the alphabet at your own pace. Ideal for beginners looking to build a solid foundation in Morse code communication.


Learn the modern semaphore alphabet with this app. It presents 26 letters and 10 numbers, designed to make memorization easy and provide a testing mechanism for your knowledge.


Experience the thrill of a casino craps table on your iPhone or iPod Touch. This app offers a realistic simulation with all available bets, including advanced options like the Fire Bet. Learn strategies, practice your game, and enjoy a true casino-style experience for free.




This advanced utility app transforms your device into a powerful flashlight with multiple modes. It can send and decode Morse code messages using light or sound, and even function as a distress signal. The app offers customizable settings and a user-friendly interface.






Get detailed marine weather forecasts and live data for boating, surfing, diving, and fishing. Access tide information, interactive maps, and alerts for your favorite spots. Meteorologist-verified forecasts ensure you have the information you need for water activities.


Optimize traffic flow by programming traffic light patterns and strategically placing road signs. Manage traffic logic in advance to prevent jams and ensure efficient movement of cars and buses through cities. Aim for high traffic efficiency in various challenging levels.




Manage traffic flow by strategically timing traffic lights. Plan and program traffic logic to optimize performance and throughput, then watch the system operate autonomously. Complete all levels to earn a special reward.


Learn and test your knowledge of spelling, Morse code, and signal flags. This app provides all letters in six languages for international communication and explains the meanings of maritime flag signals. It also includes semaphore signaling for both sending and receiving.


Stay informed about your child's school life with real-time updates on messages, timetables, attendance, and school news. Manage payments, book parent-teacher interviews, and access school reports. This app facilitates seamless communication between parents, students, and the school to foster student progress.