SignalCrafter
Offline Morse, flags & signals
$1.99 · Designed for iPad. Not verified for macOS.
Build timed Morse broadcasts, flag-hoist readbacks, field presets, and drills in one offline signaling reference for iPhone and iPad.
SignalCrafter is an offline field-signaling kit for learning, planning, and practicing classic non-network communication.
The app combines a Morse broadcaster, signal-flag hoist composer, reference almanac, and drills in a crisp, high-contrast interface built for quick use outdoors.
PRO FIELD SIGNALING TOOLS
- Timed Morse transmit plans with WPM, repeat count, pause interval, word count, unit count, and total send duration.
- Morse broadcast as screen flash, tone, haptic pulse, or any combination.
- Field protocol presets for SOS, Mayday, medical help, food/water, position unknown, status, repeat, and go-ahead.
- A-Z signal-flag hoist builder with optional substitute flags for repeated letters.
- Hoist readback, skipped-character warnings, and tappable flag details.
OFFLINE ALMANAC
- International Morse code letters, numerals, prosigns, and practice words.
- NATO/ICAO phonetic alphabet with spoken pronunciation.
- International maritime signal flags and single-flag meanings.
- Ground-to-air symbols for visual rescue signaling reference.
- Beaufort wind scale for reading sea and land conditions.
TRAIN UNTIL IT STICKS
Use the Drill tab to practice Morse, flags, and phonetics with a running streak and best-streak memory.
BUILT FOR LOW CONNECTIVITY
No account, no cloud, no ads, no tracking, and no network features are required. SignalCrafter stores preferences locally and works in airplane mode.
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.
Ratings & Reviews
A redesigned native tab interface, larger technical cards, clearer signaling references, expanded accessibility labels and hints, and a complete privacy manifest.
The developer, Robert Corbin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Robert Corbin
- Size
- 40.8 MB
- Category
- Reference
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Robert Corbin
