First release: the telegraph key, the Morse tree, lessons, listening practice and the translator.
Only the current version so far — new entries appear as the app ships updates.
Morse Key: Learn Morse Code is an education app by Sifter Apps with 1+ downloads (about 3 estimated). +3 installs in the last 7 days. Released Oct 25, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Tap a telegraph key, watch the Morse tree light up, and learn the code by ear.”