LemurKey

LemurKey is a free Morse code receiving practice app for ham radio operators and learners, available on the web at lemurkey.app and in the App Store.

Contact

Questions, bug reports, or feedback: support@lemurkey.app

When reporting a problem, include your device (iPhone model or browser), app version if known, and what you were doing when it happened. Screenshots help.

Account & privacy

Signed-in users can delete their account from Account → Delete account in the app. For privacy questions or deletion help, email privacy@lemurkey.app or read the privacy policy.

Before you write

• The app needs sound — check volume and silent mode on iOS.
• On the web, use Safari over http:// or https://; opening files directly does not work.
• Cloud save requires a free account; practice works fully without signing in.