Share your Mac screen as a video input in the Switcher Studio app for livestreaming or recording.(Switcher Studio is a livestreaming video platform that lets you capture, stream, and edit multicamera video using iPhones and iPads.) With Switcher Cast, you can share presentations, documents, websites, games, demos, tutorials, videos, and even the action from your webcam. What does Switcher Cast do? Switcher Cast is a desktop app that allows you to easily livestream or record your Mac screen and/or webcam by making them available as video inputs in the Switcher Studio iOS app.