Luna Secondary

About

Luna Display is a one-time purchase app and hardware pairing that turns an iPad or another Mac into a wireless second display for a Mac or PC. It supports Computer-to-iPad, Computer-to-Mac, and Headless Mode, which lets a Mac mini or Mac Pro be used with an iPad or Mac as the main display. Luna is available in USB-C and HDMI versions and connects devices over an existing WiFi network or a USB cable, with latency of 7-25ms over WiFi and 1-4ms over wired connections. The website states that Luna does not work with adapters and must be plugged directly into the primary computer, and that some employer-provided computers may be blocked by security settings.