How do I share my screen?
Screen sharing is supported in appear.in, in fact it is one of the most used feature. To screen share you have to klick the "Share Screen" button in the tool bar.
If you are using Chrome you need to have an extension for Screen Sharing. The reason you have to install an extension is that Chrome wants to increase the security around allowing websites to capture the contents of your screen. Chrome will also allow you to choose what tab or application screen you would like to share.
In premium, presenters video will also be shown when screen sharing. Read more about premium here.