https://www.theverge.com/2017/10/5/16428686/microsoft-launcher-android-launcher-features

Microsoft quietly released its own Android launcher more than two years ago. It was the basic, functional Arrow Launcher for Android devices, built by an employee as part of the company’s Garage experiment. That experiment is getting a big upgrade today with the release of Microsoft Launcher.

While iPhones don’t let you customize what happens when you push on the home button, Android devices include launchers that dictate the homescreen experience. Microsoft is taking advantage of that in a big way to bridge the gap between mobile and PC. Microsoft Launcher will let Android users continue viewing photos, editing documents, or reading websites from a mobile to a PC. It’s something Microsoft has been experimenting with recently, and “continue on PC” is also a big part of the new Edge browser for iOS and Android. It’s also very similar to macOS’ Handoff feature.