#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)

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

Version 2.3.0

Improved iPhone support
Desktop to Desktop supported with your subscription
New Hardware Acceleration for Mac (requires Mojave 10.14.2)
Adaptive line lead for Pro users - line lead now matches the color and shape of your stroke
Stability fixes

Latest Versions
Mac: v2.3.1.6+

Ratings and Reviews

4.0 out of 5
427 Ratings

427 Ratings

Supersimz ,

Works fine, recommended from a student.

so while a bit skeptical on using it, i tried it anyway.
it works great.
For reference, i use an ipad pro 10.5
Its not “butter smooth” with no visible lag, but it works acceptably fine. The lag is not untolerable or anything like that, but i suppose it is slight noticeable.

Its beyond easy to setup. like, you literally just plugin your ipad to you pc after downloading the software and simply opening the app and program, respectively.

altough its my first time using it for a good 5 hours, for what its worth, i didnt notice any crashes or anything.
ive seen a bunch of recommendations across the web and it does seem like i can understand why its a popular option.
its worth buying for the (as of now) price.
especially recommended for other students who dont want to invest in a second monitor for their laptop. like me.
The 5th star will come once its gets smoother to use. This also includes optimization for getting sharper text(probably due to rescaling idk) on the ipad while it works as a monitor.
The options are simple but works fine, altough im not entirely sure what “pixelperfect” is supposed to do.
once again. i recommend it.

Samuel Tobias ,

Skuffende, især for prisen

Jeg blev desværre meget skuffet da jeg begyndte at bruge appen grundet billedkvaliteten man får på sin iPad, og at det hakker når man kører musen over på iPad skærmen.
Havde forventet mere for prisen, og blev især skuffet over at man skal betale ekstra for at bruge det trådløst.
Alt i alt ikke pengene værd før det fungerer optimalt.

Developer Response ,

Has our support team reached out to you regarding the issue? If not, could you please email us once more at We'll make sure your issue is addressed.


Can not Connect...

I am using a brand New iPad Pro 2020.
I constantly get an error when I try to connect☹️

Developer Response ,

That's a fairly strange behavior. If you don't mind, please contact our support team at so they can further assist you on this matter.


Duet, Inc.
55.6 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.


English, Danish, Dutch, Finnish, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese

Age Rating
89,00 kr
In-App Purchases
  1. Duet Pro (Annual) 249,00 kr
  2. Duet Air (Annual) 155,00 kr
  3. Duet Pro 29,00 kr


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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