Those looking to switch digital music services now have an option called Stamp that appears to work semi-universally. This will be particularly interesting to those wishing to leave Groove behind for Spotify or another service.
The only downside is that you’ll have to pay for this service. But Stamp’s prices are one-time and reasonable, especially if you’re serious about moving an entire music collection—your songs and playlists—to a new service.
And, yes, I paid for it—the cost is $10 to $15, depending on which options you need—to make sure it works. (If you don’t pay, you can only transfer 10 songs at a time. So you can experiment with this yourself before you commit.)
Stamp has apps for Windows, Android, and iOS. I used the Windows desktop application, first, and experimented with moving playlists between Groove and Spotify. That worked as expected, and it warned me when the odd song couldn’t be added on the Spotify side, and gave me a way to export that list so I could try manually later.
I also tried the iOS app, and in this case I moved playlists from Groove to Amazon Music, and to Spotify.
Everything worked as expected. For example, when I run the Spotify app on my phone, the new playlists are right there at the top, ready to play.
I’ll keep experimenting with this, but it appears that Stamp solves a real problem and makes your music collection—for those with subscription services, certainly—more portable than ever.