The previously announced screen sharing feature for Skype on iOS and Android is currently available in the Skype Insider betas.
While Microsoft hasn’t yet announced a timeframe for the public release of the feature, but as pointed out by 9to5Mac, features usually roll out within a couple of months after an insider beta.
The new feature allows users to send a live broadcast of your iOS device’s screen to the other participants on a video call. The feature works in the background, allowing users to navigate between other apps on the device and continue the Skype call with screen sharing enabled.
While iOS apps are usually sandboxed, which usually prevents access to system functions such as the screen buffer, the app takes advantage of the iOS 11 live broadcasting API. That API allows third-party apps register as broadcast extensions and interact with the Screen Recording feature.
Users can start a broadcast by using the Control Center screen recording button, or from inside the Skype app. The user must then specifically confirm that they want to start broadcasting their screen.
The feature is currently included in the Skype beta, and should hit the public release of the app later this year.