Apps similar to Orion HDMI Monitor include Side Screen, which is free and open source. Other options are Duet Display, OpenDisplay, superDisplay and digiCamControl. You can choose from more than 10 Screen Mirroring Apps like Orion HDMI Monitor for iPad, iPhone, Mac, Windows and Android.
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.
Germany
EU
Smart devices become monitors by connecting them to a PC via USB! The Convenient Connect TwomonUSB
United Kingdom
Make your iPad/tablet/computer into a secondary monitor on Linux. - GitHub - kbumsik/VirtScreen: Make your iPad/tablet/computer into a secondary monitor on Linux.
The Wireless Mobile Utility app connects Nikon's first generations of Wi-Fi® enabled cameras—whether built-in or using the WU-1a or WU-1b Wireless Mobile Adapter—to compatible iPhone®, iPad® and/or iPod touch® and Android™ powered devices.
Japan
Unlock the full power of your camera by making it quicker and easier to take photos and then transfer them to your iPhone or iPad.
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