Pandora One is $3.99 monthly, if purchased through iTunes on an iOS device (iPhone, iPad & iPod Touch) or $36 yearly, if purchased on your computer. Listeners on iOS devices have the option to go month-to-month on the service if they don't want the commitment of a yearly subscription.
To upgrade on your iPhone or iPod Touch, go to the station list, tap Settings -» Pandora One -» Upgrade.
Please note that Pandora One on Apple devices is a monthly charge that will renew automatically until canceled, and that the appearance of the app will not change once upgraded.
To turn off auto-renew, follow these steps:
1. From your iOS device Home Screen, tap on Settings.
2. Tap on Store.
3. From the Store screen, scroll to the bottom and Tap on your Apple ID.
4. From the Apple ID dialog, Tap on View Apple ID.
5. From the Account screen, scroll down to the Subscription and Tap on Manage.
6. From the Subscriptions screen, Tap on Pandora Radio.
7, From the Pandora Radio screen, Tap on Pandora One.
8. From the Pandora One screen, you can change your auto-renewal options.
9. After making your changes, tap Done.