Luna Display today introduced a new Mac-to-Mac mode that allows any Mac released within the last decade to be used as a second display for another Mac. This includes any combination of Macs, ranging from a MacBook Pro and an iMac to a MacBook Air being used as the primary display for a Mac mini.

To use Mac-to-Mac mode, users must purchase a Luna Display dongle that plugs in to the second Mac. USB-C and DisplayPort options are available for $69.99 each, and Luna is offering 25 percent off through Friday.

luna display mac to mac mode
The primary Mac must be running OS X El Capitan or later, while the secondary Mac requires OS X Mountain Lion or later. In addition, both Macs must be connected to the same network via Wi-Fi or Ethernet, and each require the free Luna Display app available to download on the Luna Display website.

Luna Display is pushing forward despite Apple adding Sidecar in macOS Catalina, a native solution for using an iPad as a second display for a Mac.

"With all of the hype around Sidecar, one of the biggest gripes we've heard is that it only works with a limited range of Mac models," wrote Luna Display co-founder Giovanni Donelli in an email. "That got us thinking about how we can push Luna Display to bring even more value to our Mac devices."

Apple also has a feature called Target Display Mode that allows late 2009 to mid 2014 iMacs to be used as as external display for another Mac.

Luna Display's solution includes full keyboard, trackpad, and mouse support on both Macs. The company has shared complete step-by-step instructions on how to set up Mac-to-Mac mode on its website.

Top Rated Comments

justperry Avatar
22 months ago

https://symless.com/synergy

Works across all OS's and screens without a dongle, and has been around for years.
Huh, this has nothing to do with the article, it's about a second display, not mouse/keyboard sharing between computers.
Score: 9 Votes (Like | Disagree)
palev Avatar
22 months ago

It's literally the same features.
No, it isn't. That is only mouse & keyboard sharing. Nothing about screen sharing.
Score: 8 Votes (Like | Disagree)
fhall1 Avatar
22 months ago

It's literally the same features.
Better go check some Youtube videos - Synergy is not the same thing at all.
Score: 8 Votes (Like | Disagree)
StellarVixen Avatar
22 months ago
I admire that they didn't throw in the towel when Apple announced the Sidecar (which was originally their idea).


I currently do not have use for this, but there are people who might find this useful.
Score: 7 Votes (Like | Disagree)
Kinotto Avatar
22 months ago
When Sidecar was announced I thought it’ll be the death of Astropad, but Apple’s lack of insight on what some Sidecar users will need played in favour of the little company.

Amongst the most notably lacking features there are:

-Pencil pressure sensitivity settings
-Customisable shortcuts
-Full on-screen keyboard
-Full touch support

All of those are fundamental features for a digital artist working on iPads, and them missing on Sidecar is a clear indication that Apple made this app not with artists in mind, as I was hoping ( which would have been an earthquake in the world of digital art).
Again Apple demonstrates there’s no visionary at the steering wheel, just a sad bean counter...
Score: 4 Votes (Like | Disagree)
Kinotto Avatar
22 months ago

It is just their first run at it, it is obviously a popular feature. I can see they will improve on it and eventually replaced Astropad, Duet, etc
EDIT: 4 years ago I would have agreed, but I don’t believe anymore Apple’s will is to deliver the best.
The Apple we all knew would never have released a software inferior at launch compared to alternatives developed by software houses with 1/1000 of the resources Apple have.

And the same applies to hardware: as I stated in another thread, besides the iPhones the rest of the product lineups are full of “premium” devices with stupid trade-offs and limitations, with the only logical reason behind being a will to keep customers in a neverending upgrade cycle which benefits no one but Apple itself.

You want a MacBook? Get ready for awful keyboards, graphics and thermals. Want an iPad Pro ? Sure, we give you the best, but don’t put it in your backpack or it will bend. Want a Pro desktop? Sure, but you can’t upgrade it, got to buy a whole new one.
Score: 3 Votes (Like | Disagree)

Top Stories

iphone12protriplelenscamera

Apple's Orders for Key iPhone 13 Camera Component Expected to Outstrip Entire Android Market

Wednesday June 9, 2021 12:47 am PDT by
Major camera upgrades coming to the iPhone 13 series are putting increased pressure on suppliers to meet Apple's demand for key lens components, according to a new DigiTimes report. Apple has reportedly put Taiwan-based makers of voice coil motor (VCM) components on notice to increase their capacity by 30-40% in order to meet the company's demand, which is expected to outstrip the entire...
macos monterey setup assistant

macOS Monterey Allows You to Erase a Mac Without Needing to Reinstall the Operating System

Wednesday June 9, 2021 4:41 pm PDT by
It's been a few days since Apple announced macOS Monterey, and we continue to dig through new features that weren't mentioned during the WWDC keynote, including a much more convenient way of erasing a Mac. Following in the footsteps of the iPhone and iPad, the Mac has gained an "Erase All Content and Settings" option on macOS Monterey. The option allows you to erase all user data and...
EEC Apple iphone 13

Apple Registers iPhone 13 Models in Eurasia Ahead of September Launch

Friday June 11, 2021 2:16 am PDT by
Nashville Chatter Class has discovered a new Russian-language regulatory filing in the Eurasian Economic Commission (EEC) database pointing towards several unreleased iPhone 13 models that Apple will be launching in the fall. Versions of iPhone running iOS 14 are listed with the model numbers A2628, A2630, A2634, A2635, A2640, A2643, and A2645. None of the numbers correspond to Apple's...
Dark Sky App Featured

Dark Sky iOS App, Website, and API Now Scheduled to Remain Available Until End of 2022

Thursday June 10, 2021 7:34 am PDT by
Last year, Apple acquired the weather app Dark Sky, and shortly after its purchase, Apple shut down the app for Android. Despite the revamped iOS 15 Weather app taking heavy inspiration from Dark Sky, the weather's app standalone iOS app, web app, and API will remain available until the end of next year, compared to the end of this year, as previously planned. Dark Sky announced in an update ...
mr white ipod touch 5 protoype3

Unreleased iPod Touch 5 With Chamfered Edges and 30-Pin Dock Connector Shared Online

Thursday June 10, 2021 2:05 am PDT by
Occasional leaker Mr White has today shared interesting images on Twitter of what appears to be an old-school fifth-generation iPod touch prototype with chamfered edges and a brushed aluminum finish. The original iPod touch 5 that Apple released in October 2012 had a unibody anodized aluminum chassis with rounded edges, and was available in several colors, including slate. Another...
live text macos monterey

Several macOS Monterey Features Unavailable on Intel-Based Macs

Wednesday June 9, 2021 8:23 am PDT by
While there are many great new features in macOS Monterey, several of them are not available on Intel-based Macs, according to Apple. On the macOS Monterey features page, fine print indicates that the following features require a Mac with the M1 chip, including any MacBook Air, 13-inch MacBook Pro, Mac mini, and iMac model released since November 2020:Portrait Mode blurred backgrounds in...
ipad mini 6

Next iPad Mini Will Allegedly Feature Thinner Bezels, USB-C Port, and Touch ID Power Button

Friday June 11, 2021 1:13 pm PDT by
On his newly launched Front Page Tech website, leaker Jon Prosser has shared renders showing off the alleged design of the next-generation iPad mini, which he says are based on schematics, CAD files, and real images of the device. In line with details shared earlier this month by Bloomberg's Mark Gurman and Debby Wu, Prosser claims that the new iPad mini will feature slimmer bezels around...
apple logo plain

Trump Administration Subpoenaed Apple for Data on Two House Intelligence Committee Democrats

Thursday June 10, 2021 6:21 pm PDT by
When investigating leaks of classified information during the early days of the Trump Administration, the United States Justice Department subpoenaed Apple for metadata from the accounts of at least two Democrats on the House Intelligence Committee, reports The New York Times. Apple was also required to provide data from their aides and family members, with the DoJ requesting the records of...
macos monterey tidbits feature copy

macOS Monterey Tidbits: Animated Memoji on Login Screen, Change the Color of the Mouse Pointer, and More

Friday June 11, 2021 10:27 am PDT by
We've highlighted several new features coming in macOS Monterey, such as Low Power Mode and the option to erase a Mac without reinstalling the operating system, but there are some smaller tidbits that we wanted to share. Animated Memoji on Login Screen One small but fun new feature in macOS Monterey is the addition of a personalized Memoji on the login screen, complete with animated facial...
ios15 mail privacy feature

Apple Putting a Stop to Email Tracking Pixels With Mail Privacy Protection in iOS 15 and macOS Monterey

Thursday June 10, 2021 11:03 am PDT by
Tracking when you've opened up an email and what you've read is something that many companies and advertisers rely on for their marketing efforts, plus there are email clients out there designed to let users know when the emails they've sent have been opened up. Much of this tracking is facilitated by remote images that load when viewing an email, and some of it is even sneakier, with...