Available now for Windows + Android

Your Phone Is
a Second Monitor

Transform any Android phone or tablet into a wireless extended display for Windows. Low-latency streaming, full touch input, and zero configuration.

▾ Download for Windows ▾ Get Android App
$9.99
One-time purchase
<30ms
USB latency
60fps
Max frame rate
extraDisp Server
Streaming to device...
Live
Extended
Display
🔒
No account required
⚡
Works in under 60 seconds
💻
Windows 10 & 11
📱
Android 8.0+
∞
Free updates forever
Features

Everything You Need for
a Second Screen

extraDisp packs professional-grade features into a simple, no-fuss package. No drivers to configure, no accounts to create.

📡

Wireless Streaming

Stream your Windows display over WiFi with optimized JPEG encoding. Auto-discovers the server on your local network via mDNS - zero configuration needed.

✋

Full Touch Input

Tap, drag, scroll, and interact with your extended display using your phone's touchscreen. Every gesture is mapped precisely to Windows input.

🖨

Virtual Display Driver

Creates a real virtual monitor in Windows using IddSampleDriver. No HDMI dummy plug needed. Windows treats it exactly like a physical screen.

⚡

USB & WiFi Modes

Connect via USB for sub-30ms latency or WiFi for wireless freedom. ADB auto-connects, unlocks your phone, and launches the app automatically.

🎮

Adjustable Quality

Fine-tune JPEG quality (10-100%), frame rate (1-60fps), and monitor resolution in real time from both the server and the Android app.

📱

Phone Remote Control

Mirror and control your Android phone screen from Windows. Tap, swipe, type, and navigate your phone without touching it.

How It Works

Up and Running in 3 Steps

No complex setup. No accounts. Just download, start, and extend.

1

Install on Both Devices

Download extraDisp Server on your Windows PC and the companion app on your Android device.

2

Start the Server

Click "Start Server" on your PC. The Android app auto-discovers it on your network, or connect via USB.

3

Extend Your Desktop

Your phone becomes a second monitor. Drag windows onto it, use touch input, and enjoy more screen space.

Why extraDisp

How We Compare

See how extraDisp stacks up against alternatives.

Feature extraDisp Spacedesk Duet Display
One-time price$9.99Free (ads)$29.99/yr
No subscriptionYesYesNo
Virtual display driverBuilt-inNoYes
USB low-latencyYesNoYes
Auto-discoverymDNSYesNo
No account requiredYesYesNo
Phone remote controlYesNoNo
Touch inputYesYesYes
Download

Get extraDisp Today

One purchase. Both apps. Free updates forever. No subscriptions.

extraDisp Bundle

Windows Server + Android App
$9.99 one-time
  • Windows server application
  • Android companion app
  • WiFi & USB connectivity
  • Virtual display driver
  • Touch input & scrolling
  • Phone remote control
  • Auto-discovery (mDNS)
  • Free lifetime updates
Download Portable ZIP

Direct Downloads

After purchase
Included
  • Windows 10/11 (64-bit)
  • Android 8.0+ (Oreo and up)
  • Same WiFi network or USB
  • No account or sign-in
Download for Windows Download Android APK

SmartScreen may warn about new publishers. Click "More info" then "Run anyway". The app is safe and open-source.

Reviews

Loved by Remote Workers

★★★★★
"Exactly what I needed for my home office. My old tablet is now a permanent Slack monitor. Setup took literally 30 seconds."
Michael T.
Software Developer
★★★★★
"The USB mode is a game-changer. Super low latency and my phone stays charged. Way better than the free alternatives I tried."
Sarah K.
Graphic Designer
★★★★★
"The virtual display driver feature is brilliant. My Windows actually thinks I have a third monitor. No dummy HDMI plug needed."
James R.
Day Trader
FAQ

Frequently Asked Questions

Do I need special hardware or cables?
No. extraDisp works over WiFi with no additional hardware. For lower latency, you can optionally use a standard USB cable. The virtual display driver creates a real Windows monitor without any HDMI dummy plugs.
What's the latency like?
Over WiFi on a good network, expect 30-80ms latency. Over USB, latency is typically under 30ms. This is excellent for productivity apps, browsing, Slack, email, and video. Not recommended for fast-paced gaming.
Does it work as a real extended monitor?
Yes. extraDisp includes a virtual display driver (IddSampleDriver) that creates a real Windows monitor. You can drag windows to it, and Windows treats it exactly like a physical second screen - including in Display Settings.
Windows shows a SmartScreen warning. Is it safe?
Yes, completely safe. SmartScreen warns about apps from new publishers. Click "More info" then "Run anyway" to proceed. You can also install the signing certificate first, or use the portable ZIP version.
What Android devices are supported?
Any Android device running Android 8.0 (Oreo) or later. Tablets make excellent second screens due to their larger display. Phones work great in landscape mode for things like Slack, email, or system monitoring.
Is this a subscription?
No. extraDisp is a one-time purchase of $9.99. You get both the Windows server and the Android app, plus all future updates, forever. No accounts, no subscriptions, no recurring fees.
Can I use multiple Android devices at once?
Yes. The server supports multiple simultaneous connections. You can connect as many Android devices as you want, each showing a different monitor or the same one.
Does it work over the internet (not just LAN)?
extraDisp is designed for local network use (same WiFi or USB). For remote use, you can route the connection through a VPN like Tailscale or WireGuard to keep it secure and low-latency.
Contact

Get in Touch

Have questions, bug reports, or feature requests? We'd love to hear from you.

We're here to help

Whether you're having trouble setting up, want to suggest a feature, or just want to say hi - reach out anytime.

✉
Email support@yossoft.com
💬
Response Time Usually within 24 hours
🌐
Website extradisp.yossoft.com

Ready to Extend
Your Desktop?

Join thousands of users who turned their Android device into a second monitor. One-time purchase, no subscriptions.

▾ Download extraDisp - $9.99