(Telecompaper) Apple has signed up 11 million customers to try its streaming music service launched a month ago. Eddy Cue, Apple's senior vice president of Internet software and services, told USA Today that the company was "thrilled" with the numbers, adding that 2 million customers had signed up for the family plan at USD 14.99 per month. Apple Music launched at the end of June and is offering a three-month free trial to all customers. The paid subscription costs USD 9.99 for a single user and USD 14.99 for up to six users. Cue said Apple also saw record USD 1.7 billion in transactions on its App Store in July, "with particular momentum in China". That brings the total amount paid to app developers to USD 33 billion, up from USD 25 billion at the end of 2014. Apple plans to roll out a broad marketing campaign to promote Apple Music over the coming months as the trial period comes to an end, featuring billboard, TV and radio ads that emphasize the service's ability to connect users with not just established artist catalogs but also emerging artists, the report said.