Letters introduced one at a time using the proven Koch method. Start with E and T, add a new character only once you can reliably copy the current set. TX mode lets you key each character yourself; RX mode plays the tone and asks you to identify it.
Drill real character sequences in timed sessions. All 26 letters available from day one. Words-per-minute tracked per session so you can see speed compound over time.
Have a live Morse conversation with an AI radio operator. Key your message letter by letter — a staging area shows what you've entered. Send with K and the operator replies in Morse audio. Full Q-code reference always at hand.
Plug in a real Morse key via the TRRS headphone jack. Sidetone will detect key-down via Goertzel tone analysis with near-zero latency, so the feel matches real hardware.
Every feature is free. No locked letters, no subscription, no ads. If you find it useful, a tip jar is there — three tiers, entirely optional.