With the release of iOS 7 came Apple’s new music streaming feature, iTunes Radio. The app is integrated into iOS 7 and iTunes, meaning that users don’t need to download an app to use it. The service can be accessed in the Music app, and is supported by iOS’s native music controls as well as the ever-sassy Siri.

iTunes Radio works like music streaming service Pandora. The user creates a station based off of an artist and the service chooses songs that match the genre.

Both iTunes Radio and Pandora are free to use; however, the free versions of both play ads between every few songs. They also limit to how many times the user can skip a song.

Apple offers an ad-free experience with unlimited skips to users who subscribe to iTunes Match, a service that uploads a user’s music library to the cloud. The user can then stream or download music to an unlimited number of Apple devices. iTunes Match is a must-have for users whose music libraries are too large to fit on their iPhone or iPad.

A subscription to Apple’s Match and Radio services cost $25 a year, while the premium version of Pandora is $36 a year.

Apple faces a sizable challenge in taking over the Internet radio business. Pandora has a massive user base of over 200 million registered users and runs on any computer with an Internet connection, as well as all types of smartphones.

iTunes Radio remains exclusive to Apple devices and computers running iTunes, but with 500 million registered users, Apple has plenty of audience.