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Duet Display

By Duet, Inc.

This app is only available on the App Store for iOS devices.


#1 best-selling iPad app in US, Japan, UK, Germany, and 17 other countries!

Duet turns your iPad or iPhone into the most advanced extra display for your Mac & PC. Developed by a team of ex-Apple engineers, Duet offers unparalleled performance and display quality - all with zero lag.

Be twice as productive by multitasking with two screens. And for those that travel, have a portable way to stay productive.

To get started, plug your iPad into your desktop using your charging cable. The free Duet desktop app will automatically detect your device, and transform it into a high performance touchscreen display.

There’s no need to worry about unreliable Wi-Fi, laggy performance, pixelated screens or managing network passwords.

Interact with Mac & PC like never before, with touch & gestures, including two-finger scrolling, pan and zoom.

And with our latest release, you can even add a touch bar to any iPad with any Mac.

With Duet Pro, you can turn your iPad and Apple Pencil into a professional graphics tablet. We’ve re-engineered our rendering algorithms for ultra-responsive drawing, optimized specifically for designers, illustrators and artists.

Duet Pro also unlocks pressure & tilt sensitivity, hover, palm rejection, and more to seamlessly draw in the most powerful programs for professionals. Get precise control in Photoshop, Corel Painter, Lightroom, ToonBoom, Illustrator, Manga Studio and more. 

TechCrunch - "Feels Like Magic"
TIME - "Getting Work Done Faster and More Efficiently"
The Guardian - "Lag-free"
Forbes - "The simple thing to note is this...Duet Display works."
The Verge - "Glorious Fluidity"
Lifehacker - "It's fast, easy to use, and works great"
Business Insider - "Zero lag and true retina resolution”
Wall Street Journal - “It’s as easy as just plugging it in"

“Awesome! My iPad Pro can be an extra monitor! Cool app”
~CEO of T-Mobile, John Legere

“Very smooth and responsive indeed, plus you could use the touch screen to “click” on screen interfaces!”
~Photographer, Lok Cheung

“Love the ability to use my iPad as a monitor with Duet.”
~Former Chief Evangelist of Apple, Guy Kawasaki

“Just started using this app called Duet… Kinda love it so far.”
~Comedian and Youtube, Phillip DeFranco

“All my mac folks look at the Duet app… GREAT!”
~Actor and Comedian, Sinbad 

"I really like the app, I suppose the biggest compliment I can give is that it's so easy to setup it almost seems like an Apple product.”
~Early Adopter, M. Nightingale

"Amazing solution for me by the way. Works as I was hoping for and actually my main reason for getting an iPad : )”
~Early Adopter, M. Gemzoe

Duet Works With:
All iPhones and iPads with iOS 7.0 and later
All Macs with 10.9 (Mavericks) and later
All PCs with Windows 7 and later

Duet Pro Works With:
All iPad Pros with Apple Pencil
All Macs with 10.9 (Mavericks) and later
All PCs with Windows 8.1 and later (64 bit)
Available for $20 per year

Duet Pro is an optional upgrade for additional features, and price may vary by location. Duet Pro subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. Manage Duet Pro in Account Settings after the optional upgrade.

Learn more at
Privacy Policy -

What's New in Version 1.5.3

Performance improvements
High Sierra fixes

Please download the latest desktop apps from our website for the best experience
Mac v17.0.2 -
Windows v1.5.1.1 -


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Customer Reviews

And the makers of duet have screwed me again

This time it was with an update to the windows Duet app. I run my windows machine headless, using duet and an iPad pro to operate it. It's always been buggy, duet often can't send input right away on restart etc - but fiddling rebooting and relaunching the app all eventually get you in.

Now, duet on Windows says it has an update - I think hurrah, maybe they fixed the bugs. It updates, disconnects, and now won't reconnect. I have my computer completely inaccessible to me because the chuckleheads who charge so much money for this app didn't bother to test what their update would do to someone using duet. So what now - I have to buy or borrow a monitor bring it to my house and set it up just to troubleshoot this app again!

The pantone thinking they'll use duet in any kind of a reliability needed situation I'd watch out. It seems the developers only intend it to be a secondary display and are either not supporting it as a primary display or are actively trying to prevent it with this new update. Either way, I feel betrayed and am really in trouble now, that the new version prevents automatic connection, and my computer is stuck and useless ok n the day I need it. Thanks guys' hope others who read this won't try to use duet for anything serious.

Great Utility, PC Driver Still in Early Days...

When I had a office, I ran my laptop display and 2 external monitors. One monitor had MS Outlook full screen and I did most of my real work on the other two. We shifted to a open space model several months ago and now every workspace has a 23 inch monitor, 3 power outlets, and an ethernet cable. For the first 2 months I was constantly opening/minimizing Outlook and other apps to adjust to only having 2 screens. I purchased this tool as soon as I saw it supported PCs. I dusted off an iPad 4 and use it as a portable dedicated external PC monitor now.

The only down side is the PC driver is still a bit flakey and I usually have to kill it and restart it once or twice a day, but it is only version .91 at this point so it is not expected to be perfect. All in all having to restart the drive is a small price to pay for the performance gain of having my 3rd monitor back.


Wow…this is DEFINITELY an app worth having. Not only is it super nice to have a second screen (I teach English online, so it helps to have one screen to see the student and another screen to have my materials on), but the customer service is impressive.

I have an iPad (5th generation) and MacBook Air (13-inch, 2017). Initially I was having issues downloading the Duet program on my MacBook. I went on the app to troubleshoot and accidentally pressed “asked” and sent a blank email to Duet’s support. Within an hour I received a personal email from their team asking what they could help me with. I had already figured out what I was doing wrong (yeah, it was user error). Now both devices are running smoothly together!

I definitely would promote this app for its usefulness AND customer service!

Duet Display
View in iTunes
This app is designed for both iPhone and iPad
  • $9.99
  • Category: Productivity
  • Updated:
  • Version: 1.5.3
  • Size: 32.1 MB
  • Languages: English, Danish, Dutch, Finnish, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Duet Pro$19.99
  2. Pro - Drawing Tablet Upgrade$19.99