Ex-Apple Engineers turn your iPad into an extra display.
Duet is the first app that allows you to use your iDevice as an extra display for your Mac using the Lightning or 30-pin cable. Add touch bar to any iPad from any Mac. Just connect to a Mac running Sierra 10.12.2 and enable the feature in duet’s menu bar settings.
Duet lets you use your iPad or iPhone as an external monitor. With Zero Lag.
As long as you meet the requirements below, you should have no problem getting set up.
OS X 10.9+ or Windows 7+
Duet is built by ex-Apple engineers, delivering a retina display at 60 frames per second with zero lag. Seriously.
Using an additional display can double your productivity by reducing time to switch contexts.
Interact with OS X like never before. The most advanced display for your Mac.