MacRumors Giveaway: Win a Luna Display Adapter to Turn an iPad or Mac Into a Second Screen

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 iPad into a secondary display for a primary Mac.

luna display macbook
Priced at $130, the Luna Display adapter dongle is designed to plug into a Mac using a USB-C port (on newer Macs) or a Mini DisplayPort, and when paired up with the Luna Display software, a main Mac (or even a PC) can be connected to an ‌iPad‌ or another Mac using Wifi.

With this setup, you can take advantage of old hardware or add an extra display to your workflow without having to spend money on another device.

lunadisplay2
The Luna Display extends a Mac's display to the secondary Mac or ‌iPad‌, allowing the device to be used as a second screen, something that's especially useful as people continue learning and working from home.

Apple's ‌iPad‌ and Mac do have a built-in Sidecar function that can turn an ‌iPad‌ into a secondary display for a Mac without the need for an accessory, but this only works with a Mac and an ‌iPad‌ while the Luna Display supports Mac-to-Mac connectivity. Luna Display is also able to work with older iPads that don't support ‌Sidecar‌.

lunadisplaymactomac2
Starting this fall, Apple will allow Mac to Mac AirPlay with macOS Monterey, but Luna Display still has multiple benefits over ‌AirPlay‌ technology. ‌AirPlay‌ is limited to newer Mac models and up to 1080p display resolution, and the trackpad and keyboard only work with the primary Mac.

lunadisplaymactomac
Luna Display offers full native resolution, works with older Mac models, offers keyboard and trackpad support for both Macs, and offers low latency performance. As of May, the Luna Display's Mac-to-Mac feature works over Ethernet and Thunderbolt in addition to WiFi.

With Mac-to-Mac mode, the primary Mac needs to be running OS X El Capitan or later, while the secondary Mac can be running OS X Mountain Lion or later, so the dongle works with machines that are quite old, giving them new life. For the best performance, Astropad suggests a 2012 MacBook Air, MacBook Pro, Mac mini, iMac, or later, or a 2013 Mac Pro or later.

Luna Display provides full keyboard, trackpad, and mouse support on both connected Macs in Mac-to-Mac mode, and it has native support for M1 Macs. PC owners can use the Luna Display adapter for Windows, which extends the desktop from PC to ‌iPad‌, allowing devices to work interchangeably.

lunadisplay3
For iPads, the Luna Display is compatible with 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.

lunadisplay4
We have five Luna Display adapters to give away to MacRumors readers. To enter to win, 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 16) at 11:00 a.m. Pacific Time through 11:00 a.m. Pacific Time on July 23. The winners will be chosen randomly on July 23 and will be contacted by email. The winners will have 48 hours to respond and provide a shipping address before new winners are chosen.

Popular Stories

CarPlay Hero

Apple Releases Wireless CarPlay Fix

Wednesday April 16, 2025 11:28 am PDT by
If you have been experiencing issues with wireless CarPlay in your vehicle lately, it was likely due to a software bug that has now been fixed. Apple released iOS 18.4.1 today, and the update's release notes say it "addresses a rare issue that prevents wireless CarPlay connection in certain vehicles." If wireless CarPlay was acting up for you, updating your iPhone to iOS 18.4.1 should...
Beyond iPhone 13 Better Triad

Apple's 20th Anniversary iPhone May Finally Go All Screen

Tuesday April 15, 2025 6:31 am PDT by
Apple is preparing a "bold" new iPhone Pro model for the iPhone's 20th anniversary in 2027, according to Bloomberg's Mark Gurman. As part of what's being described as a "major shake-up," Apple is said to be developing a design that makes more extensive use of glass – and this could point directly to the display itself. Here's the case for Apple releasing a truly all-screen iPhone with no...
iOS 19 Roundup Feature

iOS 19 Will Add These New Features to Your iPhone

Tuesday April 15, 2025 7:37 am PDT by
The first iOS 19 beta is less than two months away, and there are already a handful of new features that are expected with the update. Apple should release the first iOS 19 beta to developers immediately following the WWDC 2025 keynote, which is scheduled for Monday, June 9. Following beta testing, the update should be released to the general public in September. Below, we recap the key...
maxresdefault

iPhone 17 Pro Launching Later This Year With These 12 New Features

Sunday April 13, 2025 7:52 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Subscribe to the MacRumors YouTube channel for more videos. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and ...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday April 17, 2025 4:12 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Friday April 18, 2025 5:16 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
iOS 18

Apple Releases iOS 18.4.1 With Bug Fixes

Wednesday April 16, 2025 10:11 am PDT by
Apple today released iOS 18.4.1 and iPadOS 18.4.1, minor updates to the iOS 18 and iPadOS 18 operating systems that came out last September. iOS 18.4.1 and iPadOS 18.4.1 come two weeks after the launch of iOS 18.4 and iPadOS 18.4. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. There have been complaints about ...
tvOS 18 Thumb 1

Apple Releases tvOS 18.4.1

Wednesday April 16, 2025 10:04 am PDT by
Apple today released tvOS 18.4.1, a minor update to the tvOS 18 operating system that came out last September. tvOS 18.4.1 comes two weeks after Apple released tvOS 18.4, and it is available for the Apple TV 4K and Apple TV HD models. tvOS 18.4.1 can be downloaded using the Settings app on the ‌Apple TV‌. Open up Settings and go to System > Software Update to get the new software....
iPhone Security Feature 25

Five iPhone Security Features You Should Be Using

Wednesday April 16, 2025 4:15 pm PDT by
Apple has quite a few security features that it's added to iPhones, iPads, and Macs over the years. Now more than ever, it's important to make sure you're taking advantage of the built-in security tools that are available to keep yourself and your data safe, so we've rounded up a list of the most important options. If you don't already have these enabled, you might want to consider turning...

Top Rated Comments

Apple_Robert Avatar
49 months ago
I was supposed to win this last time. It appears my winning email got lost in the mail. I will have to win this one.
Score: 5 Votes (Like | Disagree)
Sciomar Avatar
49 months ago

I was supposed to win this last time. It appears my winning email got lost in the mail. I will have to win this one.

This wouldn't be particularly useful for me, so I'll hold off entering to give @Apple_Robert's competitors better odds.
I only sign up for these to keep him from winning?
Score: 4 Votes (Like | Disagree)
TheYayAreaLiving ?️ Avatar
49 months ago
Not sure If I need this. @Apple_Robert You can have this one so you can always be the 1st one to comment :) That external display will help you out.

Vote: @Apple_Robert +1

Vote for @Apple_Robert
Score: 3 Votes (Like | Disagree)
Westside guy Avatar
49 months ago
This wouldn't be particularly useful for me, so I'll hold off entering to give @Apple_Robert's competitors better odds.
Score: 3 Votes (Like | Disagree)
Eso Avatar
49 months ago
Seems to me like we already have a winner
Score: 1 Votes (Like | Disagree)
alee Avatar
49 months ago
One thing Luna does that Sidecar can't: mirror flip the 2nd display so it can be used with a teleprompter.

Zoom calls are awesome with a teleprompter.
Score: 1 Votes (Like | Disagree)