The app transmits messages as morse code and decodes received light signals into text. Users can switch to receive mode and tap the screen to see messages or switch to input mode, type text, and press transmit to send messages.
by reizverstaerker medienwerkstatt OG★ 2.04 ratingsUtilities$0.99Data updated 2026-09-11
The app teaches and refreshes knowledge of ships' lights, fog signals, and shapes. It uses effective learning methods with four levels of increasing challenge for users.
The app simulates the Basic Theory Test (BTT) for Singapore driving licenses. It offers interactive preparation covering road rules, traffic signs, car parts, and controls, providing immediate feedback.
The app provides images and usage descriptions for all 40 international code flags. It includes a quiz for memorization and the complete International Code of Signals document for reference.
