Spotify, a music streaming company, has attracted significant criticism since its 2006 launch, mainly over artist compensation. Unlike physical sales or downloads, which pay artists a fixed price per song or album sold, Spotify pays royalties based on the artist's "market share"—the number of streams for their songs as a proportion of total songs streamed on the service. Spotify distributes approximately 70% of its total revenue to rights holders, who then pay artists based on their individual agreements. Multiple artists have criticised the policy, most notably Thom Yorke and Taylor Swift, who temporarily withdrew their music from the service.