Cmd+Tab natively cycles through apps, not individual windows — Winstrix adds a real window-level Alt+Tab on top, plus a Windows-style taskbar, Start menu, window snapping, and clipboard history. It’s aimed squarely at people moving from Windows who never adjusted to the Mac’s app-centric switching model, replicating the muscle memory rather than teaching a new one. It’s a $24.99 one-time purchase with a 14-day free trial.