During its Q4 2015 earnings call today, Tim Cook revealed the first numbers for its new Apple News service saying that the app has around 40 million users since launching alongside iOS 9 in September.

Apple didn’t specify exactly where it’s pulling that data from. It’s possible a user could mean everyone that’s ever opened the app, or it could be using some other arbitrary way of measuring, like those that have used the app in the past week, as it has done with Apple Music. The company revealed numbers for that service for the first time earlier this month when it announced it has 15 million user accounts and 6.5 million paid subscribers.

Cook also noted during today’s call that Apple News has now expanded outside of the US with the recent release of iOS 9.1 that brought the service to the UK and Australia.

Apple News replaces Apple’s old Newsstand app in iOS 9, but it attempts to introduce a new platform by combining an aggregation service using a wide variety of online news sources with curation by human editors and tools for publishers to create content specifically for the service.

You can follow along with our liveblog of Apple’s Q4 2015 earnings report here.