Morse code app for iPhone and Android
Read Morse code from any flashing light.
- Point your camera at the light.
- Tap the light to target it. The message appears as text.
- Reply with your phone's flashlight.
Try it free for 14 days
Works offline.
What it does
Decode
Reads Morse from flashlights, lamps and other phones, and learns the sender's speed by itself.
Send
Flashes any message you type with your phone's flashlight.
SOS Free
Off-grid with no signal? Flash SOS, the international distress signal, to people who can see your light.
Alert Free
The Alert strobe can help signal your presence to drivers on dark roads.
Uses
When your phone has no signal
Get it before you need it. Without internet, you can't reach the App Store.
No bars, no Wi-Fi, no internet. Your flashlight and camera still work, and Morse Watcher turns them into a way to send messages: one phone flashes, the other reads it as text. It works when both phones have the app and can see each other's light, and works best when it's dark outside.
Emergencies SOS
Off-grid with no signal? Flash SOS, the international distress signal, to people who can see your light.
Hiking & camping
Send short messages between campsites or across open ground when you can see each other's light.
Storms & blackouts
Signal neighbors across the street or from a rooftop when cell towers go down.
Night walks Alert
The free Alert strobe can help signal your presence to drivers on dark roads.
Internet shutdowns
Send short messages by light, within sight, when networks are cut.
Learning Morse
Practice sending and reading, and check yourself against live decoding.
Scouts & games
Decode a blinking light at camp, in escape rooms or in night games.