NEW YORK (AP) — Apple Inc. says it has 15 million users on its streaming-music service, including 6.5 million paying subscribers.

Speaking at WSJDLive, The Wall Street Journal’s global technology conference, Apple CEO Tim Cook said the company has 6.5 million paying customers for Apple Music and 8.5 million customers on three-month trials.

The newspaper says in a report from Laguna Beach, California, posted early Tuesday on its website that Apple launched Apple Music on June 30 and offered every user a three-month trial period.

The Journal reports that after the trial period, users pay $9.99 a month for individual subscriptions or $14.99 for families. The first batch of customers came off the trial period at the end of September.

Cook says consumers are responding positively to one of the main differentiating features of its service: human curation of playlists.