The ability to use Spotify on your phone may be restricted in terms of the storage it can take up. The new Lite version of this Android app, however, takes up about a tenth of the space compared to the regular download. It also has a meter for the cellular data used while streaming music.
https://www.notebookcheck.net/Spotify-launches-a-Lite-version-of-its-app-for-Android.427223.0.html