Mobile users are increasingly paying for their favorite music service using in-app purchases. For the first time, streaming music apps by Pandora, Spotify and Apple ranked among the leaders in app revenue in August. According to figures released Wednesday by App Annie, a San Francisco-based firm that tracks the apps of numerous platforms, the three music companies landed in the top 10 of all non-game apps.
Pandora ranked No. 2 on both the iOS and Google Play charts even though its popularity -- over 250 million registered users and over 76 million monthly listeners -- comes mostly from the United States although the service is also available in Australia and New Zealand. The company also ranked at No. 2 in July but gained three spots from No. 5 at Google Play.