Using Another Mac as a Display
Mac-to-Mac mode with Luna Display
What you will need to set up Mac-to-Mac
How to Connect your Macs
Using Wi-Fi Manual Connect
What you will need to set up Mac-to-Mac
- Primary Mac - the main Mac you will be using (the host device)
- Secondary Mac - the extended display (the receiving device)
- Reliable local Wi-Fi network connection
- Luna Display and the Luna Display apps for both the Primary and Secondary Mac
- Luna Display currently supports the iMac as a non-retina display when using it as a secondary Mac in Mac-to-Mac mode.
- Luna Display supports the new M1 Apple Silicon chip on Mac, though there are some hardware limitations on the number of external displays allowed. Check Apple's device technical specifications to see what is compatible with your device.
How to Connect your Macs

The Luna Primary app has an icon with a grey and white cat.
- You will need to enable Accessibility in macOS Mojave or later.
- You will need to enable Screen Recording in macOS Catalina or later. Luna Display does not record or save the contents of your screen.
Open the Luna Secondary app on your Secondary Mac.
The Luna Secondary app has an icon with a black and grey cat.
- make sure both Macs are connected to the same network
- check that the correct apps are open on each Mac
- try Manual Wi-Fi Connect (see the section below)
Using Wi-Fi Manual Connect