Alternatives to Luna Display

Turn a computer or tablet into a second display

Remote desktop and second display tool

Adaptive brightness for external displays

Tool to control external monitor brightness & volume

Virtual monitor for screen sharing

Display management tool

Yet another monitor

Second-display utility for iPhone and iPad over USB and Wi-Fi

Turns any device with a web browser into a secondary screen

Monitor resolution and settings manager

Wireless screen-mirroring application

Apple TV Aerial screensaver