A dramatic, fully offline field almanac for every classic way humans send a message without a network — broadcast real Morse code as light, tone, and vibration, and study signal flags, the NATO phonetic alphabet, ground-to-air symbols, and the Beaufort scale. No account, no cloud, no tracking.
Type any message and send it as International Morse — a full-screen light flash, a clean 600 Hz tone, and a haptic pulse, all perfectly in sync. Dial the speed from 5 to 25 WPM, or tap a preset for SOS, MAYDAY, or HELP and turn your phone into a signal lamp you can flash across a valley at night.
The full Morse alphabet, numerals, and prosigns with bundled audio at standard and slow speeds; the NATO phonetic alphabet with spoken pronunciation; all 26 international maritime signal flags drawn as crisp vectors; ground-to-air survival symbols; and the Beaufort wind scale.
Learn Morse the way operators actually do — by listening to whole words at speed. Bundled, on-device audio means it works on a plane, on a boat, or deep in the backcountry.
The Beaufort scale comes to life with thirteen hand-rendered sea-state plates, force 0 through 12, so you can match what you see on the water to a wind force at a glance.
Every international code flag, Alfa through Zulu, rendered as a clean vector with its single-flag meaning — plus the answering pennant. Tap any flag to hear its letter in Morse.
A fast, addictive quiz for Morse, flags, and phonetics. Build a streak, beat your best, and make the knowledge muscle memory.