Second-screen app Duet Display received a significant update today, introducing a new resolution option to support Apple's 12.9-inch iPad Pro and bringing significant performance improvements for both iPads and Macs that run the accompanying software.

For those unfamiliar with Duet Display, it's an app that is designed to turn the iPad or iPhone into a secondary display for a Mac. Duet Display was the first app to use a Lightning cable to allow an iPad or iPhone to interface with a Mac, thereby drastically cutting down on the lag that's typically present when an iOS device is used as a secondary display for a Mac over Wi-Fi.


Since its late 2014 launch, Duet Display has been updated several times to improve performance on a wide range of iPads and iPhones, but according to Duet Display developer Rahul Dewan, today's update brings "massive performance improvements." Improving performance was necessary to allow a Mac or PC to drive the high-resolution display of the iPad Pro while maintaining a lag-free connection, but the improvements also apply to all older iPads.

With the latest version of Duet Display, CPU usage has been reduced by over 80 percent on iPad and Mac or PC, thanks to a new algorithm that's more efficient and an intelligent refresh feature that's similar to the iPad Pro's own faster refresh technology, but on the software end. Extremely high CPU usage was one of our major complaints with Duet Display when it was first released and it's been a customer concern for some time, so this update should go a long way towards fixing one of the major pain points in the app.

Duet Display has proven to be a popular app with iPad owners as it gives the iPad the versatility to be used as a second display for a Mac. iPad Pro owners may find Duet Display to be especially useful given the large screen real estate of the device.

Duet Display can be downloaded from the App Store for $9.99 (reg. $15.99). [Direct Link]

Top Rated Comments

djeeyore25 Avatar
133 months ago
I wish I could use my Apple Watch as a second display.
Score: 7 Votes (Like | Disagree)
keysofanxiety Avatar
133 months ago
I wish I could use my Apple Watch as a second display.
Lawrence of Arabia never looked better!
Score: 3 Votes (Like | Disagree)
MyopicPaideia Avatar
133 months ago
Now just give us that 2nd external screen!! Two old iPads that are begging to be used simultaneously as external monitors for my Retina Macbook!!!
Score: 1 Votes (Like | Disagree)

Popular Stories

m5 macbook pro deal

Why You Shouldn't Buy the Next MacBook Pro

Tuesday February 10, 2026 4:27 pm PST by
Apple is planning to launch new MacBook Pro models as soon as early March, but if you can, this is one generation you should skip because there's something much better in the works. We're waiting on 14-inch and 16-inch MacBook Pro models with M5 Pro and M5 Max chips, with few changes other than the processor upgrade. There won't be any tweaks to the design or the display, but later this...
iOS 26

Apple Releases iOS 26.3 and iPadOS 26.3

Wednesday February 11, 2026 10:07 am PST by
Apple today released iOS 26.3 and iPadOS 26.3, the latest updates to the iOS 26 and iPadOS 26 operating systems that came out in September. The new software comes almost two months after Apple released iOS 26.2 and iPadOS 26.2. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. According to Apple's release notes, ...
Apple Logo Zoomed

Apple Expected to Launch These 10+ Products Over the Coming Months

Tuesday February 10, 2026 6:33 am PST by
It has been a slow start to 2026 for Apple product launches, with only a new AirTag and a special Apple Watch band released so far. We are still waiting for MacBook Pro models with M5 Pro and M5 Max chips, the iPhone 17e, a lower-cost MacBook with an iPhone chip, long-rumored updates to the Apple TV and HomePod mini, and much more. Apple is expected to release/update the following products...
iPhone 16e Bottom Crop

Apple Reportedly Unveiling a New iPhone Next Week

Tuesday February 10, 2026 1:51 pm PST by
Apple plans to announce the iPhone 17e on Thursday, February 19, according to Macwelt, the German equivalent of Macworld. The report said the iPhone 17e will be announced in a press release on the Apple Newsroom website, so do not expect an event for this device specifically. The iPhone 17e will be a spec-bumped successor to the iPhone 16e. Rumors claim the device will have four key...
Apple Logo Black

Apple Acquires New Database App

Wednesday February 11, 2026 6:44 am PST by
Apple acquired Canadian graph database company Kuzu last year, it has emerged. The acquisition, spotted by AppleInsider, was completed in October 2025 for an undisclosed sum. The company's website was subsequently taken down and its Github repository was archived, as is commonplace for Apple acquisitions. Kuzu was "an embedded graph database built for query speed, scalability, and easy of ...