For this week's giveaway, we've teamed up with Astropad to offer MacRumors readers a chance to win a Luna Display adapter. The Luna Display is a handy little dongle that's designed to turn your iPad into a second screen for your Mac.


You may be familiar with the Astropad software, which mirrors the Mac's display to an ‌iPad‌, but the Luna Display extends the Mac's display to the ‌iPad‌ instead of mirroring it for full second screen functionality.

lunadisplay1
Using Mini DisplayPort or USB-C, the Luna Display plugs right into your Mac and then works with the ‌iPad‌ using the Luna Display software for Mac and ‌iPad‌. Setup takes just a few seconds and the device works over a Wi-Fi connection.

lunadisplay2
At $80, the Luna Display is an affordable option for those who want a second portable display for the Mac that's perfect for use both at home and when on the go. The connection between the two devices is seamless with little to no lag depending on your connection.

lunadisplay3
Luna Display works with any modern ‌iPad‌, dating back to the ‌iPad‌ 2, along with the iPad mini and the iPad Pro. Newer iPads will perform better, of course, due to the faster hardware. You can also use the Luna Display with any 2012 or later Mac.

lunadisplay4
We've even set up an ‌iPad Pro‌ as a display for a Mac mini using the Luna Display, as seen in our video below, and it worked well.


You can buy the Luna Display from the Luna Display website, and we also have five of them to give away to MacRumors readers. To enter to win our giveaway, use the Rafflecopter 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 (February 15) at 11:00 a.m. Pacific Time through 11:00 a.m. Pacific Time on February 22. The winners will be chosen randomly on February 22 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

srdunn Avatar
87 months ago
I was in early on kick starter and have had my Luna for a while.

It is VASTLY superior to Duet. The dongle is needed as it actually acts as a hardware attached monitor; the signal to that monitor is the re-bound by Luna and sent over a proprietary framework via wifi which is the decoded and displayed by the app on the other side. The latency is VERY low and it allows you to treat it as any other monitor in MacOS; where you can mirror, extend have the iPad function in highDPI or 1:1.

It can also work via USB for wifi free environments (I just tested this method on a plane) and has settings for crowded office environments where multiple Luna may exist.

It’s just really well thought out; and they continue to improve it. They just updated the app which supposedly lowered the latency even further (no difference to my useage case; but good for some I guess).

This is a GREAT option for people who are used to a dual screen set up for work but travel a lot; I just wish they had a way to physically teather the dongle to something like a key ring.

For the guy asking about Illistrator! Yes! Also natively works with Apple Pencil. The company also first developed called AstroPad which is even further improved with Luna!

You really should check it out! Great hardware based acceleration and well though put integration makes it a winner in my books!
Score: 4 Votes (Like | Disagree)
bbeagle Avatar
87 months ago
so if its over WIFI, what does the dongle actually do? is it just a key?
The dongle is acting like a monitor cable and transmitting the data to the iPad. Your laptop is not transferring the data - the dongle is.

You're not mirroring the laptop's screen - this is an additional second screen like plugging in a monitor.
Score: 3 Votes (Like | Disagree)
ipedro Avatar
87 months ago
I spoke with Astropad and they confirmed an important point: if you drag a window on to the iPad, it will then be able to be manipulated with an Apple Pencil so you could work on Mac apps like Photoshop on an iPad using the Pencil.
Score: 3 Votes (Like | Disagree)
profets Avatar
87 months ago
I’ve been using Luna on my 12.9” iPad to control a headless Mac mini I keep in the basement. It’s fantastic, and can even run the UI @2x (retina).

When you open it, it essentially feels like a 13” touch Mac.
Score: 2 Votes (Like | Disagree)
nate13 Avatar
87 months ago
The dongle is acting like a monitor cable and transmitting the data to the iPad. Your laptop is not transferring the data - the dongle is.

You're not mirroring the laptop's screen - this is an additional second screen like plugging in a monitor.
As I understand it, that's not exactly true. If the dongle was transmitting, you'd either need another dongle for the iPad, or your iPad would need to join the dongle's wifi network. What I believe is happening is the dongle is in fact tricking the mac into thinking there is an external display, which forces the OS to output another display signal. The Luna app then grabs that pre-processed signal and sends it over WiFi to the iPad. Other apps, instead spoof that display via software (I'm assuming via a MacOS API).

I'm not quite sure why the dongle is needed if there is in fact an API mechanism, unless there are performance or user experience benefits.
Score: 2 Votes (Like | Disagree)
jlc1978 Avatar
87 months ago
You can also plug in a lightning cable for data connection instead of WiFi (to improve picture quality). So not entirely sure what the dongle is for, probably to improve input lag.
As I understand it, the dongle makes the Mac think an external monitor is installed and thus allows Luna to use the GPU for an external display; it also appears to act as a DEM tool so that they can let the associated programs be downloaded at no cost.

I’ve got one and barely use it. Disappointed that it doesn’t support pressure with Apple Pencil unless you subscribe to unlock that feature.
Luna display does not do any pressure sensitivity nor is it subscription based, so I think you are talking about Astropad standard, which does do pressure sensitivity, and it is a one time purchase.

Here is a comparison:

https://blog.astropad.com/standard-vs-studio/
[doublepost=1550404988][/doublepost]
Zero point in a wireless display if it still takes up a port on the computer imo..
I guess it depends on your use case, I find it very useful when traveling to turn my iPad Pro into a second display; which I connect via USB for best performance.
[doublepost=1550405408][/doublepost]
https://techcrunch.com/2018/12/05/duet-display-2-uses-hardware-acceleration-to-catch-up-with-luna-display/

An interesting take on Duet vs Luna.

I’m fine with my Duet arrangement- Luna would have to bring world peace or something if it wants my $80!
Interesting article, thanks a lot.

I do take issue with their claims Duet obsoletes Luna Display and costs 10x less; since version 2 now requires a subscription for a feature I had in V1 (wireless) and that Luna includes in it's price. That makes Duet only 1/3 the price in year one and requires an ongoing subscription. My guess is at $7 per ($10 less Apples 30% cut) they can't make enough to support ongoing development, so they pull a few key features in the new version in an attempt to convert users to the subscription model. I get it, but since I already got a Luna (on KS) I see no reason to lock myself into a subscription to get features I already achieve with Luna and had with Duet before they "upgraded" their software. Plus, who knows if Apple's next OS release won't break Duet again.
Score: 1 Votes (Like | Disagree)

Popular Stories

M5 MacBook Pro

Apple Announces New 14-Inch MacBook Pro With M5 Chip

Wednesday October 15, 2025 6:07 am PDT by
Apple today updated the 14-inch MacBook Pro base model with its new M5 chip, which is also available in updated iPad Pro and Vision Pro models. In addition, the base 14-inch MacBook Pro can now be configured with up to 4TB of storage on Apple's online store, whereas the previous model maxed out at 2TB. However, the maximum amount of unified RAM available for this model remains 32GB. Like...
Apple iPad Pro hero M5

Apple Debuts New iPad Pro With M5 Chip, Faster Charging, and More

Wednesday October 15, 2025 6:16 am PDT by
Apple today announced the next-generation iPad Pro, featuring the custom-designed M5, C1X, and N1 chips. The M5 chip has up to a 10-core CPU, with four performance cores and six efficiency cores. It features a next-generation GPU with Neural Accelerator in each core, allowing the new iPad Pro to deliver up to 3.5x the AI performance than the previous model, and a third-generation ray-tracing ...
apple oct 2024 mac tease

Apple Expected to Announce These Two to Three Products 'This Week'

Sunday October 12, 2025 7:05 am PDT by
Apple plans to announce new products "this week," according to Bloomberg's Mark Gurman. Apple's "Mac Your Calendars" teaser last October In his Power On newsletter today, Gurman said the products set to be updated this week include the iPad Pro, Vision Pro, and "likely" the base 14-inch MacBook Pro, with all three likely to receive a spec bump with Apple's next-generation M5 chip. Gurman...
maxresdefault

Here's Everything Apple Announced Today

Wednesday October 15, 2025 3:54 pm PDT by
We didn't get a second fall event this year, but Apple did unveil updated products with a series of press releases that went out today. The M5 chip made an appearance in new MacBook Pro, Vision Pro, and iPad Pro models. Subscribe to the MacRumors YouTube channel for more videos. We've rounded up our coverage and highlighted the main feature changes for each device below. MacBook Pro M5...
joz macbook tease

Apple Teases Upcoming M5 MacBook Pro Launch: 'Something Powerful is Coming'

Tuesday October 14, 2025 11:59 am PDT by
Apple marketing chief Greg Joswiak today teased the launch of an upcoming product, saying "something powerful is coming" on social media. Subscribe to the MacRumors YouTube channel for more videos. A short animation accompanying Joswiak's teaser reveals a brief glimpse of a MacBook Pro along with the words "coming soon." The shape of the MacBook Pro is a V, which is the Roman numeral...
airpods max 2024 colors

AirPods Max 2: Everything We Know So Far

Tuesday October 14, 2025 8:43 am PDT by
Apple's AirPods Max have now been available for almost five years, so what do we know about the second-generation version? According to Apple supply chain analyst Ming-Chi Kuo, the new AirPods Max will be lighter than the current ones, but exactly how much is as yet known. The current AirPods Max weigh 0.85 pounds (386.2 grams), excluding the charging case, making it one of the heavier...
Vision Pro M5 Announcement

Apple Updates Vision Pro With M5 Chip, Dual Knit Band, and 120Hz Support

Wednesday October 15, 2025 6:14 am PDT by
Apple today updated the Vision Pro headset with its next-generation M5 chip for faster performance, and a more comfortable Dual Knit Band. The M5 chip has a 10-core CPU, a 10-core GPU with Neural Accelerators, and a 16-core Neural Engine, and we have confirmed the Vision Pro still has 16GB of RAM. With the M5 chip, the Vision Pro offers faster performance and longer battery life compared...
macbook pro blue

Apple's M5 MacBook Pro Imminent: What to Expect

Tuesday October 14, 2025 4:35 pm PDT by
Apple is going to launch a new version of the MacBook Pro as soon as tomorrow, so we thought we'd go over what to expect from Apple's upcoming Mac. M5 Chip The MacBook Pro will be one of the first new devices to use the next-generation M5 chip, which will replace the M4 chip. The M5 is built on TSMC's more advanced 3-nanometer process, and it will bring speed and efficiency improvements. ...
MacBook Pro M5 Screen

New MacBook Pro Does Not Include a Charger in the Box in Europe

Wednesday October 15, 2025 6:59 am PDT by
The new 14-inch MacBook Pro with an M5 chip does not include a charger in the box in European countries, including the U.K., Ireland, Germany, Italy, France, Spain, the Netherlands, Norway, and others, according to Apple's online store. In the U.S. and all other countries outside of Europe, the new MacBook Pro comes with Apple's 70W USB-C Power Adapter, but European customers miss out....
HomePod mini and Apple TV

Apple's Next Rumored Products: New HomePod Mini, Apple TV, and More

Thursday October 16, 2025 9:13 am PDT by
Apple on Wednesday updated the 14-inch MacBook Pro, iPad Pro, and Vision Pro with its next-generation M5 chip, but previous rumors have indicated that the company still plans to announce at least a few additional products before the end of the year. The following Apple products have at one point been rumored to be updated in 2025, although it is unclear if the timeframe for any of them has...