Irradiate is a free, quick, and easy-to-use tool for Mac and iOS to block advertisements from being played or displayed while you are listening to iTunes Radio. Irradiate intercepts the connection between iTunes and the server on which iTunes Radio advertisements are stored. Because iTunes Radio can no longer download the advertisements, it simply skips them, leaving you with an uninterrupted, ad-free listening experience. Irradiate is intelligently designed to impose no burden on your device's resources, and is optimised for all recent versions of OS X and iOS. Installation instructions for Irradiate for iOS are available here.
iTunes Radio requires a US or Australian iTunes account. Anyone, anywhere in the world can create an account in either of these stores by following these instructions>.
Note: While the software is classified as free, it is actually donationware. Please consider making a donation to help support development.