DitDah

Ham radio aspirants, military history enthusiasts, and curious learners aiming for real Morse fluency have one hurdle in common: they need to recognize characters by ear, not by sight. DitDah is a Morse trainer shaped around that goal. The app gives you a structured curriculum of 65 lessons organized into unlockable stages covering letters, digits, prosigns, and Morse speed drills. Each audio drill keeps running accuracy and streak counts visible so you always know where you stand. When you are ready to push faster, the Decode Challenge acts as a live Morse decoder exercise: it plays a random sequence at your target WPM and asks you to type what you heard, then highlights every wrong character so you know exactly what to fix. The Encode Practice screen reverses the drill: a word appears and you tap dot and dash buttons to produce it, with real-time feedback on inter-element timing. A Morse alphabet reference map covers all 26 letters, 10 digits, and 8 common prosigns. Tap any cell to hear its tone and see your mastery level. The Progress Log tracks your WPM trend across 30 sessions, a per-character accuracy heatmap, and a calendar of daily practice. Amateur radio licensing candidates doing CW practice can adjust audio frequency and words-per-minute to match the exam pace. Short daily sessions compound faster than most learners expect. Free. No ads, no purchases inside.