One-time license
Desktop HUB Pro
Pro unlocks optional script plugins that can transform search results inside the Windows app, ConnectCam where enabled, and the local HTTPS library site: browse your on-disk downloads and exported playlists in the browser with the same Desktop HUB theme (runs while the app is open; Administrator required for HTTPS on port 443 and hosts mapping). Licenses are bound to the Windows user profile and device fingerprint used at purchase time.
Purchase
In the app, use Settings → Buy Pro for an embedded checkout that can apply the license automatically. After browser checkout, copy the token from the success page and use Paste license token in Settings.