LOS ANGELES (AP) - Internet radio company Pandora is adding more functionality to its mobile apps - showing lyrics and artist information and making it easier to share self-crafted stations with friends - as the race to grab a larger share of mobile advertising dollars heats up.

The Oakland, Calif.-based Internet radio company is essentially bringing the features of its website to users of its apps for Apple and Android mobile devices. The app for iPhones is being released Monday while an Android version is expected to follow soon.

Mobile use of Pandora's streaming service is growing quickly, and in the quarter through July, mobile listening nearly doubled from a year earlier and made up more than 75 percent of its 3.3 billion listener hours in the quarter.