https://www.bleepingcomputer.com/news/microsoft/microsoft-bringing-the-movies-and-tv-service-to-ios-and-android/

Microsoft’s Movies & TV service still remains a priority for the company and it’s hard to imagine Microsoft ever abandoning it. Microsoft is working on building Movies & TV app for iOS and Android to make it possible to buy and watch movies on all your devices.

The app is currently available on Microsoft's platforms such as Windows 10 PC, Windows 10 Mobile and Xbox, but has strangely been missing from the most widely used mobile operating systems Android and iOS.  A report from Windows Central indicates that this is going to change as Microsoft wants to bring Movies & TV service to iOS and Android devices in an attempt to make the application cross-platform.