OpenDisplay is a free, open-source tool that turns spare iPhones, iPads, and Macs into true second monitors for Mac computers, offering an alternative to Apple Sidecar, Duet Display, and Luna Display with features like USB or WiFi connectivity, touch input, and Retina-sharp display quality without subscriptions or hardware dongles.
OpenDisplay is a free, open-source alternative to Apple Sidecar that turns iPhones, iPads, or spare Macs into true second displays for Mac computers, supporting USB and WiFi connections with touch input and Retina-sharp resolution without subscriptions or hardware dongles.