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Duet Display

By Duet, Inc.

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** 50% off for a limited time **

#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

Learn more at
Privacy Policy -

What's New in Version 1.3.7

iOS Keyboard Compatibility
Touchbar Support
Apple Pencil Pressure Improvements

Please download the latest versions for the new features -
Mac -
Windows -


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iPad Screenshot 1
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Customer Reviews

Feature Requests!

Duet was in sale for $10 so I grabbed it. The new MacTouch support is exciting enough to get it for that feature alone!

Unsure if the $20 in app purchase is one time or not since it doesn't come up as an option when using my iPhone 6S+. Guessing you have to be on an iPad Pro to get the option for the new Apple Pen.

Would like to see first time setup go a bit easier.

The iOS app should launch with a graphic showing you plug in a lightning cable to your Mac (similar to the way your iOS device shows the lightning cable and iTunes when it needs something).

The iOS app should have a Mac and Win icon to bring up a Share link to the App on their server (that way you can email or message it to yourself).

Duet does a weird flicker if I set my iPhone to be auto scaled but lock my rotation vertical. It should be smart like YouTubes full screen to optionally over ride the screen orientation to use the full screen.

There should be a flip option in case your setup uses the iPad upside down (like when demo'ing for a client sitting across from me) or when the charger cord only connects from the top.

Let folks know you are waiting for USB 3 lightning cables to unlock better performance and features. Folks will. E patient if they know this is an Apple limitation. Most folks don't realize that lightning is still at dog speed USB 2 speeds!

Great App and I hope you make a pitch to Tim Cook to buy your App and drag you. Ack to Apple! You got mad talent!

Was Great but pulled a bait and switch!

Loved this app, was the best to use when traveling allowing me to use my iPad Pro as a second display for my MacBook Pro. Bought the app for $20 and used it for a few times. Then got the news of the touchbar with the upgrade. Literally updated the MacBook Pro to use this in Duet. Not a fan of the $20 PER YEAR for additional features.

I had a problem where after the upgrade and the pop up wanting more money, the touch screen on iPad wasn't working correctly. Contacted support who after a day answered with the solution to uninstall and reinstall the app on the Mac. Problem solved.

Would give it 5 stars if it didn't have the $20/year upgrade. My guess is a lot of people with PC's and Mac's who find this app are going to look at AirDisplay and other solutions after reading all the bad posts about the annual premium cost on top of the higher cost of the app.

It Just Plain Works...GREAT !!!

I don't write too many reviews about, well, anything, but when I find something that delivers as promised, and outperforms itself while helping my business and life run more smoothly, I say so. This app is something I've looked for for a long time. Similar apps have all had issues, not the least of which is lag. I have some apps that benefit from touch input, and I use them often enough, but couldn't justify an expensive LCD dedicated tablet. This solves the problem for a whopping ten bucks on sale, and does so beautifully on both my iPhone 7+ and iPad. With a good fine point stylus (Adonit Dash 2), I'm in business, and it is a true plug and play solution. Took all of maybe five seconds, if that, to set up once the companion app was installed on my Mac Pros. In a word...FANTASTIC!

Duet Display
View in iTunes
This app is designed for both iPhone and iPad
  • $9.99
  • Category: Productivity
  • Updated:
  • Version: 1.3.7
  • Size: 22.1 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

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Top In-App Purchases

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