Air Display Client is the client component which lets you use a spare Mac’s screen as an extra display for your main computer. Launch this app on your spare Mac, then wirelessly connect to it from the free host app you’ll install on your main Mac to instantly expand its screen real estate.
Note: This is not the free Air Display host software that you need on your main computer. This is the client app that turns a Mac into a second monitor for another computer.
Updated on Jun 13 2020
Note: The downloadable demo is version 3.2; the version available for purchase on the Mac App Store is version 3.4.2