Open Signal, type a message or choose a field protocol, set WPM, choose the repeat count and pause interval, then tap Broadcast. The app shows the estimated send and total duration before you transmit.
Support
SignalCrafter Support
Help for SignalCrafter, the offline Morse, flag-hoist, and signaling reference app for iPhone and iPad.
Use the three toggles on the Signal tab to choose which channels broadcast. You can send light only, sound only, vibration only, or any combination.
Open Hoist, enter letters A-Z, and review the generated signal-flag stack. Turn substitute flags on when repeated letters should use first, second, or third substitute flags.
The Signal and Hoist tabs call out characters that are skipped or unsupported by the current signaling mode, so you can simplify the message before relying on it.
The Almanac includes Morse code, NATO/ICAO phonetics, signal flags, ground-to-air symbols, and the Beaufort wind scale.
The Drill tab quizzes you on Morse, flags, and phonetics. A best-streak counter stays local on your device.
Everything is bundled in the app. SignalCrafter needs no network, no account, and no sign-in, and works in airplane mode.
Contact through the App Store product page with your device model, iOS version, app version, and a short description of what happened.
Important Safety Note
SignalCrafter is an educational reference and training tool. It is not a certified emergency beacon, marine radio, aircraft signal device, or substitute for official procedures or proper emergency equipment.