Users who want to continue after the 7-day trial will have to upgrade to a premium account more details here, http://siriusxm.com/oniphone (site is currently down, awesome start!).

Existing subscribers will be able to use their login information to listen to stations on SIRIUS iPhone app!

SIRIUS iPhone app is well made with features like saving your favorite station or adding your favorite song to the cart and buy it later or simply buy a song right away! It also lets you run through the list of radio stations and see what’s playing at a glance.

The application offers over 100 radio station to choose from. These stations include Music, Sports, News, Talk, Entertainment and Comedy.

The application sounds like one of the Best iPhone Apps right? Then why is it average customer rating on App store is just 2?

These ratings are not because of the poor functionality of the application but because of the top stations like Howard Stern, MLB/NFL, Bubba, etc .. are missing from the list of stations available on iPhone.

Click here to visit App Store to download the application or watch the following video to see it in action..