Orion - HDMI Monitor Alternatives

With Duet Display, you can transform your iPhone or iPad into a second display to expand the screen space of your PC or Mac system.

Superbrush clones the screen of your Windows computer on your Android tablet and relays pen input back to your PC.

AirDroid Business, an enterprise-grade MDM solution, is designed to enable businesses mobility and productivity through remote access and control, device provisioning, policy application and management, kiosk mode, and geofencing.

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Use Splashtop Wired XDisplay to turn your iPad, Android tablet, Kindle or smartphone into a high-performance extra monitor for your computer.

Air Display allows extra screens to extend the display size of a Mac desktop. The company behind the product is Avatron Software, which was founded in 2008. Read more about Air Display.

Use your tablet as graphic tablet/touch screen on your computer.

spacedesk expands the Windows desktop computer screen to other computers over the local area...

VirtScreen is an easy-to-use Linux GUI app that creates a virtual secondary screen and shares it through VNC.

iDisplay is an app that turns a mobile device into a secondary desktop monitor. The app currently supports iOS, Android, Windows and MacOS, and it lets users connect a desktop computer to a mobile device over WiFi. Read more about iDisplay.

Yam Display turns your iPad or iPhone into an external display for your Mac via USB.

A DSLR camera remote control open source software Features:

You can create dual monitors quickly and easily using a USB.

Astropad is a free form drawing tool designed from the ground up to take advantages of the features offered by an iPad.

The easy way to remotely connect with your home or work computer, or share your screen with others.