Microsoft retired its Groove Music streaming service last year, but promised to keep investing in the app for Windows 10 users. That investment won't continue for iOS and Android users, though.
Disappointing. I actually use Groove on Android with my music collection on OneDrive. I have Spotify Premium as well, but I like the Groove interface better, and there's just something old-school that ...
Seems strange to make the app not work anymore, but I guess they probably don't want to update it. A shame. Maybe they'll refocus all of the dev working on this into making Groove a better music ...