Does anyone use their iPad as a second pc monitor? What's the best app for this?
To connect your iPad as a display on second screen, either connect your iPad to your Mac over USB, or—to do it wirelessly—ensure Bluetooth, Wi-Fi, and Handoff are turned on. You'll also need to be logged in to the same Apple ID on both devices. Then, click the AirPlay button in your Mac's menu bar and select your iPad from the list. Other options include using remote support tools like logmein, R-HUB remote support servers, teamviewer etc.