Morse Trail teaches Morse code through sight, sound, and touch. Trace each letter on an interactive Morse tree, hear the tone, and feel every dot and dash as haptics. Six practice modes, a 15-step course, and spaced-repetition review make it stick. New: your Apple Watch now works on its own — feel the code, or switch on sound, no iPhone needed. 100% offline. No ads, no accounts, no tracking. Free with a one-time Pro unlock. iPhone, iPad & Apple Watch. 12 languages.