This is a Beta version of the Authenticator app and is only intended for internal testing purposes.
The first step towards a world without passwords! After a quick Bluetooth sync, use this app to unlock your Windows 10 computer at work. Just open the app and tap on a nearby computer.
Note: This app is still in beta. Future versions will include support for Microsoft account, a sign in solution for browsers and VPN. one-time passcode generation, and MFA approval through notifications.
Source: Microsoft Authenticator (beta)