The Rdio music streaming service is preparing to release an updated version of its mobile app later today will place a new focus on its free “stations” feature as competitors like Spotify, Pandora, and Apple’s one-two punch of iTunes Radio and Beats Music crank up the pressure on the service.

Rdio claims its free music library is as much as fifteen times bigger than those of competing apps. Like other online radio services, the new Rdio will automatically create playlists and stations from that library based on a user’s music preferences. Curated stations from musicians and other celebrities will also be available, much like in iTunes Radio.

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Users will be able to decide between hearing music they’ve heard before, or branching out and finding new tunes using a slider that goes from “familiar” to “adventurous.”

The new version will begin rolling out to users across all platforms today as an update to the existing application.