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How to Use Your iPad as a Secondary Mac Display Without Sidecar

An iPad Pro connected to a MacBook as a secondary display.Khamosh Pathak

With Apple’s Sidecar function, you’ll use your iPad as a secondary Mac show. Unfortunately, it’s handiest to be had on more moderen (post-2019) MacBooks and iPads. But don’t concern—you’ll get the similar capability with the third-party app, Duet.

Duet ($9.99) has been round for years and has frequently won new capability. After you put in it, simply plug your iPad (or iPhone) into your Mac and get started the usage of it as a secondary show.

If you need extra options, you’ll subscribe to Duet Air ($1.99 per 30 days), which helps you to use your iPad as a wi-fi show. The Duet Pro subscription ($3.99 per 30 days) allows Apple Pencil fortify so you’ll use your iPad as a drawing pill (one of Sidecar’s absolute best options).

Unlike Sidecar, now not handiest does Duet fortify older Macs, however you additionally don’t must run macOS Catalina or iPadOS 13 to make use of this selection.

However, when you simply need to use your iPad as a 2d show, the elemental Duet app is all you wish to have.

RELATED: How to Use Your iPad as an External Mac Display With Sidecar

How to Install and Set Up Duet on a Mac

Duet running an iPad connected to a MacBook as a second display.

Download the loose Duet app for Mac.

Click "Download" on the Duet website.

When the download is entire, double-click the report to unzip and divulge the Duet application report. Drag it from the “Downloads” folder (or anywhere you stored it) to the “Applications” folder.

Double-click the Duet zip file.

Now, double-click the Duet icon to release the app.

Double-click the Duet icon.

You’ll want to grant the permissions the app requests from you. First, upload the Helper software. To accomplish that, sort your software password, after which click on “Add Helper.”

Type your password, and then click "Add Helper." 

Next, use Spotlight Search to open “System Preferences.” Alternatively, you’ll click on the Apple emblem within the top-left nook of your display screen, after which click on “System Preferences.” Go to the “Security & Privacy” segment to regulate the permissions.

Click "Security & Privacy" in the "System Preferences" menu.

Click at the Lock icon and kind your software passcode to make adjustments.

Click the Lock icon.

Click “Accessibility,” after which test the field subsequent to “Duet.”

Click "Accessibility," and then click the box next to "Duet."

If your Mac runs macOS Catalina, Duet wishes a brand new Screen Recording permission. Click “Screen Recording,” after which click on the field subsequent to “Duet.”

Click "Screen Recording," and then click to check mark the box next to "Duet."

After you grant the permissions, click on the Duet icon within the menu bar. This is the place you’ll keep watch over the app and set your personal tastes.

Click the Duet icon in the menu bar.

How to Use Duet Display with Your Mac

Now that the Duet app is ready up to your Mac, it’s important to acquire, download, and open the Duet app to your iPad.

The Duet home screen on an iPad.

Next, attach your iPad on your Mac with a USB to Lightning or USB-C cable. Almost straight away, your Mac’s show will have to seem to your iPad. You can now use your iPad as a secondary show.

An iPad using Duet to show a Mac's screen.

If you don’t just like the default setup, you’ll customise some settings.

First, let’s organize the presentations. Duet may make the iPad the principle show. Click the Duet icon within the menu bar, after which click on the Gear icon.

Click the Gear icon.

Click “Display Arrangement.” If you’ve used any other show together with your Mac sooner than, you’ll be conversant in this interface.

Click "Display Arrangement."

If you need to make your Mac the principle show, click on and cling the white rectangle, after which drag it to the Mac show.

Depending on the place you most often put your iPad, you’ll transfer the iPad show to all sides of your Mac. You too can dock it on the peak or backside of the Mac show if that’s useful on your workflow.

Additionally, you’ll make a selection the checkbox subsequent to “Mirror Displays” to replicate your Mac’s show on your iPad.

Click and hold the white rectangle to drag it to the Mac display. Check the box next to "Mirror Displays" to mirror your Mac's display to your iPad. 

Now, you’ll use your iPad as a secondary show. You too can transfer the cursor from the Mac’s show to the iPad with the trackpad to your Mac.

By default, Duet displays a instrument Touch Bar on the backside of the iPad show. If you need to disable it, click on the Duet icon within the menu bar, after which click on “Disabled” within the “iPad Touch Bar” segment.

Click "Disabled."

You gained’t want to concern about lags or jitters to your iPad while you use it as a secondary show. If you do run into any problems, merely pressure give up and restart the Duet app. The secondary show will have to reappear simply because it was once.

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