Signal Light
Morse Code Forever
$0.99
1.0.4for iPhone, iPod touch
Age Rating
Signal Light Screenshots
About Signal Light
Note: Your device must have a flash to use this app!
Camper, Sailor, Soldier, Spy
A handy tool for campers, scouts, boaters, (and yes, spies)!
Use it to communicate with distant friends using Morse code, tap out a beat for a human-powered strobe light, or get the attention of rescuers.
This app is based on the old mechanical “signal lamp” which is a manually-controled shuttered spotlight used on warships to communicate securely while maintaining radio silence.
Modern navies still use signal lamps, but now use infrared wavelengths and night vision goggles!
Extra fun:
Put a paper towel tube on the flash to make a tight spotlight and you’ve got a line-of-sight communication tool that only you and your partner can see.
p.s. SOS is . . . – – – . . .
Camper, Sailor, Soldier, Spy
A handy tool for campers, scouts, boaters, (and yes, spies)!
Use it to communicate with distant friends using Morse code, tap out a beat for a human-powered strobe light, or get the attention of rescuers.
This app is based on the old mechanical “signal lamp” which is a manually-controled shuttered spotlight used on warships to communicate securely while maintaining radio silence.
Modern navies still use signal lamps, but now use infrared wavelengths and night vision goggles!
Extra fun:
Put a paper towel tube on the flash to make a tight spotlight and you’ve got a line-of-sight communication tool that only you and your partner can see.
p.s. SOS is . . . – – – . . .
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What's New in the Latest Version 1.0.4
Last updated on Feb 13, 2023
Old Versions
- Added a message in case your iPhone is muted and you don't get sound
- Updated to be compatible with latest version of iOS
- Updated to be compatible with latest version of iOS
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Version History
1.0.4
Feb 13, 2023
- Added a message in case your iPhone is muted and you don't get sound
- Updated to be compatible with latest version of iOS
- Updated to be compatible with latest version of iOS
1.0.3
Jul 13, 2018
This app has been updated by Apple to display the Apple Watch app icon.
- Changed back to original icon
- Changed back to original icon
1.0.2
Mar 13, 2018
- New icon
- Can adjust brightness while viewing cheat sheet
- Can adjust brightness while viewing cheat sheet
1.0.1
Mar 8, 2016
- Added video preview to App Store
- Higher pitched tone (700Hz)
- Higher pitched tone (700Hz)
1
Nov 14, 2015
Signal Light FAQ
Click here to learn how to download Signal Light in restricted country or region.
Check the following list to see the minimum requirements of Signal Light.
iPhone
Requires iOS 12.0 or later.
iPod touch
Requires iOS 12.0 or later.
Signal Light supports English