Uninstalling
Removing HarmonyKeen.
On Windows
Open Settings, then Apps, then Installed apps. Find HarmonyKeen and choose Uninstall. That removes the app and the plugin together. Nothing else to do.
On macOS
macOS has no built-in uninstaller for apps that install plugins, so HarmonyKeen is removed by deleting four items. It takes a minute.
- The app
/Applications/HarmonyKeen.app - VST3 plugin
/Library/Audio/Plug-Ins/VST3/HarmonyKeen.vst3 - Audio Unit (Logic Pro)
/Library/Audio/Plug-Ins/Components/HarmonyKeen.component - GarageBand instrument
/Library/Audio/Plug-Ins/Components/HarmonyKeen (for GarageBand only).component
The app is easy: drag it from Applications to the Trash. For the two plugin folders, in Finder choose Go, then Go to Folder, paste /Library/Audio/Plug-Ins, and delete the HarmonyKeen items you find in VST3 and Components. macOS will ask for your password, because those folders are shared by everyone who uses the Mac.
Your license key is stored separately and is not removed by any of this. If you reinstall later you won't need to enter it again.
What is never touched
Your projects and saved harmonies, and any other company's plugins. Only the four HarmonyKeen items above are removed.
After uninstalling
If your DAW still lists HarmonyKeen, rescan your plugins. The entry is left over from before and now points at nothing. This applies on both Windows and macOS.