Morse Mentor

Learn Morse with guided Koch-method lessons, timed drills, and a two-button iambic keyer. Works offline, no account needed.

Learn Morse with guided Koch-method lessons, timed drills, and a two-button iambic keyer. Master weak characters with the Mastery Board. Works offline, no account needed. Turn random Morse practice into a guided coaching system that adapts to you. Morse Mentor works completely offline, with no account, no ads, and no internet required. You get a clear learning path, real-time feedback, and tools to focus on exactly the characters that slow you down.

Learn step by step with the Koch method. The built-in course introduces two new characters at a time across 10 steps, with guided practice sessions using realistic word groups. When you're ready, run timed copying drills: choose 5-20 minutes, a difficulty band, speed, and Farnsworth spacing, then compare your copy with the transcript. Practice sending with the two-button iambic keyer. The app measures dit and dah durations, flags spacing errors, and confirms accuracy with haptics.

Translate any phrase to Morse, or tap dots and dashes to decode it, with synchronized animated playback. Need a quick reference? Explore the bundled library of letters, numbers, punctuation, Q-codes, prosigns, and ham abbreviations with one-tap audio. Your personal Mastery Board shows a per-character accuracy heat map. Tap any weak character to auto-generate a focused drill.

Set a weekly goal and use the home-screen widget to start a short session in one tap. Customize tone frequency, speed, Farnsworth gap, volume, and haptic strength in Settings. All lessons, character tables, Q-codes, and word lists are built in. Your practice history stays on your device. Whether you're preparing for a ham radio license, earning a scout badge, or just love radio, Morse Mentor turns focused practice into real fluency.