Windows 10 needed universal apps, and Dropbox made one, complete with Windows Hello

Microsoft’s partnership with Dropbox has been slow to evolve, but the two companies announced a universal Windows 10 app on Thursday with a unique twist: It allows customers to log in to a Dropbox account using Windows Hello.
The app is fully baked for Windows 10, boasting notifications, quick search, commenting and drag-and-drop support as well as the Hello biometric login. Microsoft and Dropbox said the app, optimized for tablets, should be available within the next few days.