Blink
Offline signal communication via Morse code light flashes
- Compatibility
- iOS 26+
- Version
- 1.0
- Price
- Free
About this app
Blink is an offline signal communication app that sends Morse code via flashlight or screen flashes — no network needed. It includes 60+ preset phrases across 6 categories (emergency, outdoor, medical, and more), SOS emergency mode with countdown, night vision mode, customizable flash colors and speed, and a camera-based Morse code scanner. Designed for outdoor adventures, emergencies, and silent communication.
Features
Fully Offline Communication
No network, Bluetooth, or signal required. Send Morse code via flashlight or screen flashes.
SOS Emergency Mode
One-tap SOS signal with 3-second countdown, haptic feedback, and slide-to-cancel for safety.
60+ Preset Phrases
6 categories — emergency, outdoor, medical, teamwork, silent, and directions — with auto pinyin conversion.
Night Vision Mode
Red flash color with 50% brightness to preserve night-adapted vision.
Morse Code Scanner
Use the camera to capture and decode incoming light signals into text in real time.
Custom Flash ColorsPro
Choose from white, red, yellow, or blue screen flash — use different colors as channel signals.
Adjustable WPM Speed
Adjust transmission speed from 5 to 20 WPM for different distances and skill levels.
Hardware Safety Protection
Monitors temperature and battery in real time with auto-fallback and cooldown pauses.
