How to get the Windows desktop app

Account menu → "Desktop app" → "Download for Windows" (Windows 10/11, 64-bit; it installs for your user, so normally no admin prompt). The first time, Windows may show "Windows protected your PC" because the installer isn't code-signed yet: click "More info" → "Run anyway". Sign in with your normal ScriptFox account: it's the same web app plus the desktop-only parts (the Call Mode overlay, the screen recorder, the Studio editor, a tray icon, and global hotkeys).

Updates: the app checks shortly after launch, downloads in the background, and shows "Update ready" with "Restart & update now" / "Later" (Later installs when you next quit normally). Check by hand from the account menu → "Check for updates" or the tray icon → "Check for updates…", which also shows your version. There's no macOS build yet; the web app works on Mac.