Effortless expansion
Turn your tablet into a second screen for your Mac just by installing the apps—supporting both extended display and mirroring.
Your tablet.
A second display.
Turn the Android tablet you already own into a sharp, responsive second screen for your Mac—over a USB cable or Wi-Fi.
Key Features
Sharp resolution
Pixel-for-pixel 1:1 HiDPI rendering and high-definition text refresh keep even small text sharp and comfortable to read.
Touchscreen & pen control
Scroll smoothly with your fingers right on the tablet, and conveniently click or drag when using a stylus.
How to Use
1. Install the apps
Install the Mac installer on your Mac and the DisplayDuo app on your tablet.
2. Allow Mac permissions
When you first launch DisplayDuo on your Mac, a prompt appears. Allow Screen Recording, and also allow Accessibility if you want to use stylus and touch input.
3. Connect
Connect with a USB cable, or open the tablet app on the same Wi-Fi network and select your Mac.
Pricing
Limited-time launch special — 50% off all plans.
1 month
Limited time · 50% OFF
$1.99USD
$1.99/mo
7-day free trial · No card required
3 months
Limited time · 50% OFF
$3.99USD
≈ $1.33/mo
7-day free trial · No card required
1 year
Limited time · 50% OFFBest value
$8.99USD
≈ $0.75/mo
7-day free trial · No card required
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System Requirements
Mac
- OS
- macOS 14 Sonoma or later
- Processor
- Apple Silicon (M1 or later), Intel
- Connection
- USB cable or same Wi-Fi network (5 GHz recommended)
Android
- OS
- Android 11 or later
- Device
- Tablet, Phone
- Connection
- USB cable (devices supporting USB accessory mode) or same Wi-Fi network (5 GHz recommended)
FAQ
Is it a real extended display or just mirroring?
Both. macOS recognizes your tablet as a second display so you can move windows across screens, arrange display layouts in System Settings, or switch to mirroring whenever you want.
Do I need Wi-Fi, or can I connect with a USB cable?
You can use either. Plug in a USB cable for a direct connection without developer mode (on devices supporting USB accessory mode), or connect wirelessly over the same Wi-Fi network (5 GHz recommended). If your Mac doesn’t appear in the list, the app searches the same Wi-Fi for it automatically, and after you connect once with a USB cable it remembers your Mac and reconnects over Wi-Fi. If the Wi-Fi is slow, the app suggests a USB cable for a smoother picture. Some routers and office or guest Wi-Fi networks block devices from reaching each other — use a USB cable there.
Is it secure?
Yes. Wi-Fi connections are encrypted with TLS 1.3, and your screen travels directly between your Mac and your tablet without passing through any server. The tablet remembers your Mac’s security key and refuses to connect if it changes. A direct USB cable connection is a physical link and is not encrypted.
What happens to windows on the tablet if the connection drops?
If the tablet stops responding — for example when Wi-Fi drops or the cable is unplugged — DisplayDuo removes the second display within about 10 seconds, and macOS moves those windows back to your Mac screen.
Which devices are supported?
Macs running macOS 14 Sonoma or later (Apple Silicon M1 or later, and Intel) and Android tablets and phones running Android 11 or later.
Does it support touch and stylus input?
Yes. On tablets, you can scroll smoothly with your fingers and click or drag using a stylus (pen). On phones, direct touch click and drag are also supported.
Can I flip the tablet upside down to match my cable setup?
Yes. Tablets run in landscape and can be flipped 180°, so you can route the cable from whichever side fits your desk or stand best. Phones support both portrait and landscape rotation.
Will it slow down my Mac?
DisplayDuo uses hardware-accelerated encoding on your Mac, keeping CPU usage and battery impact light while you work.
Why does macOS show a screen-sharing indicator in the menu bar?
macOS displays the standard system privacy indicator whenever a virtual display is streamed to your tablet. DisplayDuo sends the screen directly to your connected device only.