Spotify has millions of active users who don't pay a cent for the service, they just opt to hear advertising on the streaming music service instead of paying a monthly fee.
The one catch is that free listening is only available on computers. However, this could soon change.
Spotify is reportedly in the midst of planning free, ad-supported, mobile music streaming, according to The Wall Street Journal. This means users will be able to listen to music on the go via their smartphones and tablets.
According to the Journal, the purported free mobile service will let users play a few songs on demand, but will mostly act as a radio station, much like Pandora and Rdio. For their part, Pandora has long offered free, ad-supported, mobile music streaming, and Rdio introduced a similar feature in October.
