Spotify is reportedly set to offer an ad-supported, free version of its streaming-music service for mobiles devices. At the moment, using Spotify on a tablet or smartphone requires a subscription at $10 a month, though there’s been an ad-supported version on desktop since the streaming service launched.

Spotify plans to make mobile access to its music service free, The Wall Street Journal reports. Now a source confirms with TechCrunch that the free mobile tier will launch December 11th at a press event in New York. We’ve also learned users won’t get unlimited on-demand access, but will be less restricted if they listen to playlists or collections they’ve previously created.