Update: ComScore has issued a clarification to its original press release, giving 37M (not 44M) as the number and stating that its measurement does not distinguish between streaming and local music.

Analytics data from ComScore shows that 37M Americans used Apple Music in its first month, making it the 14th most popular smartphone app, just behind Twitter.

Facebook was the most popular app across both iOS and Android, with Facebook Messenger and YouTube taking second and third places.

Apple yesterday told the Guardian that it would be “adding features and cleaning up certain things” in Apple Music – a likely reference to improvements seen in the Music app in iOS 9.

ComScore also noted that iOS increased its market share in the U.S. by 1.1%, from 43.1% in April to 44.2% in July – with Samsung the main loser, as its share dropped by 1.3%. Kantar recently reported that iOS had seen a 1.3% decrease in its market share in the preceding 12 months, but that there was “ample opportunity” for upgrade purchases.