MacRumors Giveaway: Win a Luna Display Adapter That Turns an iPad or Mac Into a Second Screen - MacRumors
Skip to Content

MacRumors Giveaway: Win a Luna Display Adapter That Turns an iPad or Mac Into a Second Screen

by

For this week's giveaway, we've teamed up with Astropad to offer MacRumors readers a chance to win a Luna Display adapter that can turn an extra Mac or an iPad into a secondary display to be used with a main Mac.

lunadisplaymactomac2
The inch-long Luna Display adapter plugs into a Mac using a USB-C port (on newer Macs) or a Mini DisplayPort (on older Macs) and then when paired with the Luna Display software, your primary Mac can be connected to an ‌iPad‌ or another Mac over Wifi, providing new ways to utilize old hardware or to add extra displays without having to invest in new products.

lunadisplay2
When connected, the Luna Display is able to extend the primary Mac's display to the secondary Mac or the ‌iPad‌ to allow the extra device to be used as a second screen, a feature that can be extra useful these days as people continue to figure out their work from home setups with makeshift offices.

luna display mac to mac mode
Available for $70, the Luna Display sets itself apart from Apple's Sidecar functionality with the Mac-to-Mac support, which ‌Sidecar‌ can't do. The Mac-to-Mac feature was introduced after ‌Sidecar‌ and it makes the Luna Display adapter more powerful than Apple's solution. Luna Display is also able to work with older iPads that aren't supported by ‌Sidecar‌.

luna display macbook
When used in Mac-to-Mac mode, the primary Mac needs to be running macOS El Capitan or later, while the secondary Mac can be running macOS Mountain Lion or later, so you can use the Luna Display with some machines that are quite a bit older. For the best performance, the main Mac should be a 2012 MacBook Air or later, a 2012 MacBook Pro or later, a 2012 Mac mini or later, a 2012 iMac or later, or a 2013 Mac Pro or later.

luna product raw 087 copy 1800x1800
Luna Display offers full keyboard, trackpad, and mouse support on both Macs when used in Mac-to-Mac mode, and more information on using Luna Display with dual Macs can be found on the Luna Display website.

As for iPads, the Luna Display is compatible with almost all modern iPads, including the the ‌iPad‌ 2 or later, all iPad mini models, all iPad Pro models, and all iPad Air models, with iOS 9.1 or later as the only requirement. Performance is faster on newer iPads, but older models work well too.

lunadisplay3
Right now, Astropad's Luna Display is compatible only with Macs, but later this year, the company is planning to debut Windows support for the first time in an effort to reach more customers and further diversify its product lineup after the launch of Apple's ‌Sidecar‌. Check out Astropad's recent blog post for more info on the Windows-based products that are coming.

We have five Luna Display adapters to give away to MacRumors readers. To enter to win our giveaway, use the Gleam.io widget below and enter an email address. Email addresses will be used solely for contact purposes to reach the winners and send the prizes. You can earn additional entries by subscribing to our weekly newsletter, subscribing to our YouTube channel, following us on Twitter, following us on Instagram, or visiting the MacRumors Facebook page.

Due to the complexities of international laws regarding giveaways, only U.S. residents who are 18 years or older and Canadian residents (excluding Quebec) who have reached the age of majority in their province or territory are eligible to enter. To offer feedback or get more information on the giveaway restrictions, please refer to our Site Feedback section, as that is where discussion of the rules will be redirected.

The contest will run from today (July 10) at 11:00 a.m. Pacific Time through 11:00 a.m. Pacific Time on July 17. The winners will be chosen randomly on July 17 and will be contacted by email. The winners will have 48 hours to respond and provide a shipping address before new winners are chosen.

Top Rated Comments

T.j.p. Avatar
82 months ago
I‘m a fan of Duet. Just a cable to the iPad or iPhone and it’s a second display. Requires an app on the iOS device, and the duet software on the Mac. And the subscription version gives a small bump in features like using the iPad as a graphics tablet. But in normal use the one time purchase does just fine. And it supports device combinations that sidecar doesn‘t. Duet was the seminal set of software for the purpose. And it’s an inexpensive solution crafted by former Apple engineers.

love to see a shootout between all three. The good, the bad, and the ugly.
Score: 4 Votes (Like | Disagree)
jlc1978 Avatar
82 months ago
I've bought and used all three: Duet, Luna and Sidecar. My use is as a second screen to display an document while working on athoer so I can easily cut and paste or refer to it while working on my Mac.

Started with Duet. Runs on 10.9+ It was a great app and ahead of its time. Having my Ipad Pro as a second screen was very useful when traveling. Its biggest pro was it was the first, when they went to subscription the base app offered no real value over Sidecar; other than it works with more devices. Can't see spending money for the base version since Sidecar already does what the base version does; unless you use a device other than an iPad. $20/year for wireless or $30/year for touch support is simply not worth it to me as I found I never use that feature enough to make it worthwhile.

Luna Display. Runs on 10.11+ Bought on Kickstarter. I found it faster and more responsive than Luna. Pros are most pay features from Duet are included in the purchase. Mac to Mac and Headless mode. Wireless. Has touch support, I used it to add the Touchbar to my iPad before I bought a Touchbar Mac; but never really found the touch support that useful. Main use was to scroll with an Apple Pencil. Headless mode makes a Mini more flexible as you do not need to connect a monitor to it if you are using it as a server. Cons: Price is high upfront. Dongle covers a lot of plug space so two large plugs won't fit side to side. Plays videos well.

Sidecar: Catalina. Very basic functionality but it works if your main use is a second monitor to display documents, etc that are mostly static. Cons: No touch support if that is what you want. Mac/iPad only.

Cons on all: Only run on relatively new Macs. I've never found wireless to be that useful due to lags.

My recommendation: If you want touch support or us a pre-Catalina Mac go with the LunaDisplay. Although it is more upfront its payback is about 2.5 years and I've found it a better experience than Duet.
Score: 3 Votes (Like | Disagree)
82 months ago

I own one of these. I never opened it. But it was on sale one day, and I thought would be nice to use my iMac Retina 5K Late 2015 one day as a secondary monitor for my MacBook Pro.
This is exactly what I've been using it for. My work-issued 2016 MacBook Pro needs to be my primary hard drive, but the Luna Display allows me to use my own 2014 iMac 27" Retina as a second monitor. Generally, couldn't be happier. It seems to restart the Luna app every few hours, but this only takes a few seconds.

Does exactly what I need it for during working hours. Quit the Luna app, and then the iMac becomes my home machine again. Definitely recommended for this use case.
Score: 3 Votes (Like | Disagree)
jlc1978 Avatar
82 months ago

I was going to replace my 2012 iMac this year but with the Apple silicon announcement, I'll wait till the ARM version comes out. Instead of reselling my current iMac I had plans to just turn it into a second monitor I read somewhere that this is doable with a cable that is a built-in feature with MacOS. What in the world is the difference between the Mac option and this option? Luna just seems like getting an extra screen with extra steps. What am I missing?
Target Display Mode is limited to certain iMacs, and retina models won't use it, IIRC. Luna Display works with a lot me Macs.
Score: 2 Votes (Like | Disagree)
macduke Avatar
82 months ago
They've been sherlocked.
Score: 2 Votes (Like | Disagree)
82 months ago
This seems like a cool way to keep using an old iMac or iPad that is past its prime.
Score: 2 Votes (Like | Disagree)

Popular Stories

lululook apple watch titanium

MacRumors Giveaway: Win an Apple Watch Ultra 4 From Lululook

Friday September 25, 2026 10:56 am PDT by
For this week's giveaway, we've teamed up with Lululook to offer MacRumors readers a chance to win a new Apple Watch Ultra 4. Lululook makes all kinds of accessories for Apple devices, including the Apple Watch. The company has a selection of Apple Watch bands that work well with the new Series 12 and the Ultra 4 models. Lululook's $129.99 Strata Milanese Band matches the Apple Watch Ultra...
southern straps 3 1

MacRumors Giveaway: Win an Apple Watch Series 12 and a Nylon Band From Southern Straps

Friday October 9, 2026 10:20 am PDT by
For this week's giveaway, we've teamed up with Southern Straps to offer MacRumors readers a chance to win an Apple Watch Series 12 and a nylon band from Southern Straps to go along with it. Southern Straps is a California-based company that has been making high-quality bands for the Apple Watch since the device first launched in 2015, and the company's selection of bands offer a an...
iPhone Duo Trio

Here's What Apple's Apps Look Like on the iPhone Duo

Tuesday October 20, 2026 11:12 am PDT by
With just three days to go until the iPhone Duo is released, Apple is getting ready for the launch. Behind the scenes, the App Store now has screenshots of Apple's built-in apps running on the Duo. We've seen some apps in marketing materials, but images of the ones we haven't seen give us an idea of what it will be like using the iPhone Duo day to day. Many apps are shown in landscape...
Latest Stories
iPhone Duo Demand Reportedly Exceeds Apple's Expectations
iPhone Duo Demand Reportedly Exceeds Apple's Expectations
18 minutes ago
iPhone Duo Launch Begins as First Orders Reach Customers
iPhone Duo Launch Begins as First Orders Reach Customers
6 hours ago
1Password for Agents Keeps Your Passwords Hidden From AI
1Password for Agents Keeps Your Passwords Hidden From AI
7 hours ago
iPhone Duo 24 Hours Later: Your Questions Answered
iPhone Duo 24 Hours Later: Your Questions Answered
8 hours ago
Apple's iWork Apps Get 'Intelligent Assistant' and iPhone Duo Support
Apple's iWork Apps Get 'Intelligent Assistant' and iPhone Duo Support
9 hours ago
Apple is Apparently Considering a Slightly Larger iPhone Duo
Apple is Apparently Considering a Slightly Larger iPhone Duo
9 hours ago
Giant iPhone Duo Displays Coming to Four Apple Stores
Giant iPhone Duo Displays Coming to Four Apple Stores
10 hours ago
Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]
Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]
11 hours ago
Apple Updates More Apps With iPhone Duo Support
Apple Updates More Apps With iPhone Duo Support
11 hours ago
Apple Will Label Apps 'Made for iPhone Duo' in App Store
Apple Will Label Apps 'Made for iPhone Duo' in App Store
14 hours ago
Amazon Takes $49 Off iPad With Prices Starting at $399.99
Amazon Takes $49 Off iPad With Prices Starting at $399.99
15 hours ago
F1 on Apple TV Now Available in Dolby Atmos
F1 on Apple TV Now Available in Dolby Atmos
15 hours ago
Apple Reveals More Than 50 Apps That Will Be Updated for iPhone Duo
Apple Reveals More Than 50 Apps That Will Be Updated for iPhone Duo
16 hours ago
Apple Blocks Certificates That Could Help Attackers Fake Websites
Apple Blocks Certificates That Could Help Attackers Fake Websites
17 hours ago
Giant iPhone Duo Installations Spotted at Apple Fifth Avenue
Giant iPhone Duo Installations Spotted at Apple Fifth Avenue
18 hours ago
iPhone Duo 2 Prototypes Include Under-Display Face ID
iPhone Duo 2 Prototypes Include Under-Display Face ID
18 hours ago
Tesla App Gains iPad and iPhone Duo Support
Tesla App Gains iPad and iPhone Duo Support
22 hours ago
Apple Reportedly Boosts iPhone Duo Orders by 44%
Apple Reportedly Boosts iPhone Duo Orders by 44%
22 hours ago
Fortnite Returning to Australian App Store After Court Ruling
Fortnite Returning to Australian App Store After Court Ruling
23 hours ago
Apple Ordered to Open iPhone to Rival App Stores in Australia
Apple Ordered to Open iPhone to Rival App Stores in Australia
23 hours ago
Apple Suppliers Face Hurdles Cutting Circuit Board Emissions
Apple Suppliers Face Hurdles Cutting Circuit Board Emissions
23 hours ago
Things Updated for iPhone Duo With Adaptive Layout
Things Updated for iPhone Duo With Adaptive Layout
1 day ago
Simplicity and Siri AI Are HomeView's Killer Features, Apple Says
Simplicity and Siri AI Are HomeView's Killer Features, Apple Says
1 day ago
iPhone Duo Reviewers Really Miss Face ID
iPhone Duo Reviewers Really Miss Face ID
1 day ago
Does the iPhone Duo Run Hot? Here's What Reviews Found
Does the iPhone Duo Run Hot? Here's What Reviews Found
1 day ago
Apple Music's New Look is Now Live on Apple's Website
Apple Music's New Look is Now Live on Apple's Website
1 day ago
Anthropic Launches Claude Duet, a Proactive AI Agent
Anthropic Launches Claude Duet, a Proactive AI Agent
1 day ago
What 32,000 Folds Did to the iPhone Duo's Hinge
What 32,000 Folds Did to the iPhone Duo's Hinge
1 day ago
iPhone Duo's Hidden FaceTime Camera Takes 'Trash' Photos
iPhone Duo's Hidden FaceTime Camera Takes 'Trash' Photos
1 day ago
iPhone Duo Has 'Edge Light' Feature That Debuted on Macs Last Year
iPhone Duo Has 'Edge Light' Feature That Debuted on Macs Last Year
1 day ago