Duet Display
Use your iPad as a second display for your Mac
Duet Display launched on December 18, 2014 with 749 votes, #2 of 1,837 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 11 years on.
In plain words
Duet Display transforms an iPad into a second display for Mac computers, enabling extended screen space for multitasking. Built by former Apple engineers, the app connects iOS devices to Mac and Windows machines, expanding available workspace. Users can manage multiple windows and applications across displays, streamlining workflow for professionals and creative workers who need additional screen real estate.
written from the facts on this page · September 2026
From the sources
Multitask and increase your productivity with Duet Display. Ex-Apple engineers have built an app that allows access to all of your iDevices, transforming them into an extra display.
Be productive from anywhere - connect your devices to turn them into a lightning fast second monitor, a Remote Desktop to access from anywhere, a drawing tablet, and more.
Duet is the most trusted and flexible way to use your devices together and work from anywhere with Mac, PC, iOS or Android. A lightning fast Remote Desktop to connect your Mac, PC, iOS, or Android device. Use your Mac, PC, iPad, iPhone, or Android device as a second display. With zero lag. Mirror your display to share your screen, use your device as a graphics tablet, and more. Use your Mac, PC, iOS, or Android device as a graphics tablet for digital illustration. With zero lag. Use your Mac or PC as a second monitor in Duet Target Display Mode. Control two computers with a single keyboard, mouse, or trackpad, and work seamlessly across them. Put your iPhone or iPad screen on your Mac or…from duetdisplay.com
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Duet Display for Windows2015 · duetdisplay.com · ▲140Your iPad as a beautiful extra display, now for Windows
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