Apple's first foray into the music industry was with its line of iPods that have been generally successful since its first generation. As of late, however, Cupertino has finally decided to jump into the music streaming industry when it launched Apple Music at WWDC last June. Now, the number of its users is increasing in ranks, but more than half of it are trial subscribers that are yet to dish out the subscription fee for the service.

According to reports, the number of Apple Music subscribers has reached to 15 million people. However, trial subscribers of the music streaming app have increased to about 36 percent in the last six weeks. Further reports suggest that Cupertino's streaming service has gained a considerable size of users from 11 million to the 15 million users it now has.

Furthermore, about half of Apple Music users still have not yet turned off the service's auto-pay toggle, which would then dramatically increase the number of paying subscribers to Apple's music streaming service.

"I think it's fabulous, and to have over 15 million on there, and 6.5 million in the paid category," said Tim Cook, Chief Executive of Apple Inc. according to CNET. "I'm really happy about it. And I think the runway here is really good," 

Against music streaming giant Spotify, which has about 20 million paying subscribers, Apple Music 6.5 million subscribers who pay a monthly $9.99 service fee. By the numbers, Apple Music subscribers that are paying the monthly fee accounts to a third of Spotify's, but Cupertino's streaming service is definitely increasing even when it has only been about three months since it first launched.

Apple Music currently ranks as the second most popular music streaming service, second only to Spotify. Deezer follows a close third with its 6.3 million paying subscribers but later revealed that they only have about three million users when the company filed for an IPO. Additionally, both Google Play Music and Rdio have not yet announced their paying subscribers.