Getting Started with Luna Display

Luna Display turns your iPad into a second display for your Mac. Extending your workspace by using your iPad as a true display. With full support for external keyboards,  Apple Pencil, and touch interactions; it lets you use the power of your Mac into a touchable device.  

This quick guide will help you get familiarize with Luna Display and its features.


Starting Luna Display

After successfully connecting the Mac and iPad apps, you’ll notice the iPad’s screen is another Mac desktop screen. Just like connecting another monitor to your Mac, depending how your Display settings are you may see another desktop background or files shift over. 


This can always be adjusted through MacOS System Preferences. If you're not seeing a menu bar on the top of the iPad screen, most likely "Displays have Separate Spaces" is disabled in Mission Control settings. For more information on this, please check our FAQs.


Screen settings & Arrangement

Also after successful connection, a menu with Luna Display's General Settings will appear. 

Here you can set Luna Display’s arrangement to the left or right side of your Mac Desktop. Or select Custom, to quick access Display settings and resolution from System Preferences in MacOS. 


Retina Display enable


Below the screen arrangement is also buttons for non-retina or enabling retina use. 

When first running Luna Display, this feature is turned off. To enabled retina, the Luna Display Retina Extension will need to be installed. 

There will be a window to prompt this — In System Preferences, go to Security & Privacy, and under the General tab make sure “Allow apps downloaded from” is accepted for Astro HQ, LLC by clicking “Allow” button. Afterward the extension will immediately install.

*Please note: If your Mac does not have retina supported, use of retina cannot be enabled.

If the iPad is not retina compatible, this will not be possible either.


Showing the Sidebar

Place your finger on the outer frame of your iPad, then slide it inwards onto the iPad screen. 

As you do this gesture, Luna Display’s sidebar will be unhidden. 


Here there is quick access to the Display preferences and Arrangements. This sidebar also actively shows status of which connection is in use.


To hide the sidebar again, place your finger on the sidebar and slide it outwards from the iPad screen.



Apple Pencil

Apple Pencil can be used with Luna Display, but it will only utilize basic input and no pressure. 

For Pressure Sensitivity support, Luna Display will have to be combined with our other app, Astropad. More information check out


If you are running Mac OS Mojave

Unlike other Mac OS versions, you will need to enable Accessibility to use Luna Display. There will be a message that prompts during initial setup, with steps to Enable Accessibility from your Mac's Systems Preferences. 

You can also activate this manually by going to System Preferences, Security & Privacy, under the Privacy tab. There, check the box next to the Luna Display icon.