duet display

Use Your iMac as a Second Monitor

Apple discontinued Target Display Mode. Duet brings it back — former Apple engineers turn your iMac into a high performance second display for your Mac or PC.

With zero lag.

Get Started
Step 1: install Duet on your computer and your iMac

Install.

Download Duet on your primary computer and on your iMac, then log into both with the same account.

Step 2: connect your iMac to your Mac or PC with Duet

Connect.

Open the Desktop tab in Duet on your iMac — your computer appears, and you can select Mirror or Extend.

Step 3: extend your desktop onto your iMac

Extend.

Move your cursor to the edge of your primary display and drag windows onto your iMac, just like any other monitor.

Why Duet

Give Your iMac A Second Life.

That iMac still has a beautiful display. Duet turns it into a second monitor for the computer you use every day.

Built By Ex-Apple Engineers

Duet delivers a retina display at 60 frames per second with zero lag. Seriously.

Incredibly Efficient

Duet uses the least CPU and the least battery, meaning you can work without being glued to an outlet.

Works With Mac And PC

Duet supports both Mac and PC, so your iMac can be a second display for whichever computer you use.

Wired Or Wireless

Connect wirelessly, or use a Thunderbolt cable between two Macs running macOS 12.3 or later.

Perfect For MacBook + iMac Desks

Pair your MacBook with the iMac on your desk and drag windows and applications between displays — extra screen real estate whenever you sit down.

Priority Support

If you have any question, the Duet support team works around the clock to respond (on average within one hour).

“the first app that actually turns your iPad into a second display I'd actually like to use”

Forbes

“more towards feeling like a full-computer rather than tablet”
“has zero lag, and it also offers a true Retina resolution that takes full advantage of the iPad”
“take advantage of the GPU to work even faster and with greater energy efficiency”
“with a secondary display experience on an iPad (or even an iPhone) that feels like magic”
“it’s fast, easy to use, and works great”
“getting work done faster and more efficiently”
“it’s fast, responsive, and you don’t need to worry about mucking around with display settings — just plug in and go”
“Duet has been around for years, and it’s the best way to turn your iPad into an extra monitor for your Mac or PC”
“iPad into a second monitor for Mac...with zero lag”
“promising – and delivering, as far as I can tell – 'lag-free' performance”
“it’s fast, easy to use, and works great”

What Our Users Say

App Store Review

It is incredibly helpful: I never knew how much more productive I’d be

App Store Review

If you travel with a laptop and iPad, you need this app. I needed a second screen, but Duet gives me even more. Full gesture support, customizable shortcuts, Touch Bar, tons of resolution options, and very little battery power. How is this all in one app?

App Store Review

Co-workers can’t believe I can share my desktop on my iPad and my iPhone. Look no further. This is a terrific addition to any office, remote or otherwise.

Twitter

@duetdisplay is life changing

App Store Review

If you are hesitant about this app, because you think that you’re getting along fine without it, it will make a huge difference.

App Store Review

My Wacom stopped working, and Duet became my placeholder... realizing it supports wireless, touch, has better gestures and is overall more stable then Wacom, I cannot go back. If you are an artist using Photoshop and Zbrush then I suggest trying this out.

Twitter

Duet Display is still the best app of all time.

App Store Review

I just love this app. Especially when I am travelling for work an working from the company branches. Then I use my iPad as second monitor for Outlook, Lync and other chat while I use the laptop big screen for remote desktop to my workstation at the main office. :)

App Store Review

As head of an NGO, I travel a great deal to remote places around the world. It is very difficult to be productive, as power and internet availability are often a challenge. However when I am able to set up, Duet works like charm to improve productivity.
Yearly
Lifetime
DUET AIR
Use your iPad, Mac, PC, or Android as a wired or wireless second display
Advanced gesture control
Designed for digital nomads and working remotely
7 Day Free Trial
$
4
Per Month,
Billed Annually
DUET STUDIO
Use your iPad, Mac, PC, or Android as a graphics tablet
Advanced gesture control
Designed for digital artists
Pixel Perfect Rendering
7 Day Free Trial
$
5
Per Month,
Billed Annually
Popular
DUET PRO
Everything in Duet Air and Studio
Ultimate Remote Desktop app
Designed for professionals
Share Keyboard And Mouse Between Devices
Mirror iOS To Mac or PC
7 Day Free Trial
$
6
Per Month,
Billed Annually
DUET BUSINESS
Everything in Duet Pro
Multi-user licensing and management
Single Sign-on w/ OIDC/SAML
Deploy to your team to organization
5 User Minimum
14 Day Free Trial
$
3-6
Per USER, PER MONTH
W/ ANNUAL + BULK SAVINGS
DUET AIR
Use your iPad, Mac, PC, or Android as a wired or wireless second display
Advanced gesture control
Designed for digital nomads and working remotely
See Price
$
199 sale
DUET STUDIO
Use your iPad, Mac, PC, or Android as a graphics tablet
Advanced gesture control
Designed for digital artists
Pixel Perfect Rendering
See Price
$
249 sale
Popular
DUET PRO
Everything in Duet Air, Duet Studio, and Duet Remote
Ultimate Remote Desktop app
Supercharged performance
Designed for professionals
Keyboard, Mouse, & Trackpad Sharing Between Devices
See Price
$
299 sale
DUET BUSINESS
Everything in Duet Pro
Multi-user licensing and management
Single Sign-on w/ OIDC/SAML
Perfect for teams and organizations
5 User Minimum
14 Day Free Trial
$
6
Per USER, PER MONTH
OR $60 / YEAR
Yearly
3 months
Popular
DUET PRO
Access Your Own PC or Mac Remotely
Individual Use Only
End-to-End Encryption
Privacy/Blackout Monitor
7 Day Free Trial
$
6
Per Month,
Billed Annually
DUET REMOTE ACCESS
Access Any PC or Mac Remotely - your own or someone else's
Everything in Pro
Connect with ID & Code
Reconnect after Reboot
Priority Support
7 Day Free Trial
$
10
Per Month,
Billed Annually
DUET BUSINESS
Connect Your Organization's PCs and Macs
Everything in Remote Access
5-user minimum
SSO / SAML
User management
Contact us
Popular
DUET PRO
Access Your Own PC or Mac Remotely
Individual Use Only
End-to-End Encryption
Privacy/Blackout Monitor
7 Day Free Trial
$
10
Per Month
billed for 3 months
DUET REMOTE ACCESS
Access Any PC or Mac Remotely - your own or someone else's
Everything in Pro
Connect with ID & Code
Reconnect after Reboot
Priority Support
7 Day Free Trial
$
15
Per Month
billed for 3 months
DUET BUSINESS
Connect Your Organization's PCs and Macs
Everything in Remote Access
5-user minimum
SSO / SAML
User management
Contact us

Put Your iMac Back To Work

Download Duet on both computers to get started. Duet can connect between your macOS, Windows, iOS, and Android devices from anywhere in the world.

Get Started on Desktop

Duet for macOS 11+
Duet for macOS 10.13-10.15
Duet for Windows 10+

Get Started on Mobile

Or use this QR code on your mobile device to download the right app automatically:

duet
© Duet Inc. 2026