Mirror Hall is described as 'MirrorHall creates virtual second monitors over the network using UDP video streaming among Linux desktop or mobile devices. It is optimized for low latency, and is based on gstreamer and GNOME's mutter screen sharing APIs' and is a screen mirroring app in the system & hardware category. There are more than 10 alternatives to Mirror Hall for a variety of platforms, including Mac, Windows, iPad, Android and iPhone apps. The best Mirror Hall alternative is Spacedesk, which is free. Other great apps like Mirror Hall are Side Screen, Tab Display, Deskreen and Duet Display.
Use your iPad as a wireless display, to extend your Mac desktop. Ever wish you had an extra display for your computer? There’s an app for that! With Air Display, you can use your iPad as an additional monitor for your Mac (Windows no longer supported)
United States
Turn your iPad/iPhone or Android tablet or smartphone into a convenient side monitor for your Windows or Mac desktop. iDisplay is a universal app specially optimized for iPad, iPhone, iPod Touch, and Android devices screens.
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Smart devices become monitors by connecting them to a PC via USB! The Convenient Connect TwomonUSB
United Kingdom
Turn any Mac you already own — even an old iMac — into a true extended second display for your Mac. No dongle, no subscription, no account, no cloud.
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