How to Use Your iPad as a Secondary Mac Display Without Sidecar Share December 5, 2019 Dm4r Technology With Apple’s Sidecar feature, you can use your iPad as a secondary Mac display. Unfortunately, it’s only available on newer (post-2016) MacBooks and iPads. But don’t worry—you can get the same functionality with the third-party app, Duet. Read This Article on How-To Geek › Source : How to Use Your iPad as a Secondary Mac Display Without Sidecar