Convert text to and vice versa. Send and receive signals using front or rear light sources. Toggle manual light signals for instant SOS alerts. View signal patterns and practice encoding.
by Mark Wong★ 4.431 ratingsUtilitiesFreeData updated 2026-09-26
Support multiple input methods including Easy English, Emoji, Morse code, X-SAMPA, Unicode, Swift Kana, Simplified Greek, Manchu/Hebrew, Mandarin (mountain head enhanced), and various pinyin and double-pinyin schemes.
The app transmits messages as morse code and decodes received light signals into text. Users can switch to receive mode and tap the screen to see messages or switch to input mode, type text, and press transmit to send messages.
Learn and practice Morse code through interactive lessons and quizzes. Input text to convert to Morse, or decode messages. Track progress and test speed. Share results and challenge friends.
Meditate with sessions, mindfulness courses, and breathing exercises. Listen to sleep stories and soundscapes. Track progress and set reminders for daily practice. Share achievements and connect with a community.
Adjust lighting color and brightness by touching and dragging the screen. Double-tap to access settings. Provides adjustable ambient for photography in low- conditions.