Rock Radio is a free iPhone app developed by Nick Culbertson. It falls under the category of Multimedia, specifically Music & Radio. The app offers a wide range of streaming internet rock radio stations, making it a go-to choice for rock music enthusiasts.

One of the standout features of Rock Radio is its extensive station list. It includes a diverse selection of channels, ranging from classic rock to obscure indie-rock to top 40 hits to metal. With such a variety, users can easily find stations that cater to their specific rock music preferences.

Another notable feature of Rock Radio is the ability to listen to background audio while surfing the web. This allows users to enjoy their favorite rock music while engaging in other activities on their iPhone.

Overall, Rock Radio provides a convenient and comprehensive platform for rock music lovers to stream their favorite stations. With its diverse selection of channels and the option to listen to background audio, it offers a seamless and enjoyable listening experience.