Rdio has announced that it’s going to make its customized stations free for those using iOS an Android apps today. Formerly called You FM, all of its stations are going to be transferred, for free, onto its apps. Powered by The Echo Nest, the company uses an algorithm to produce music choices that users might like based on past choices, in addition to artists that they like on Facebook and follow on Twitter. Rdio has included radio stations for several years, but didn’t prominently support them. But since their introduction, total plays have increased over 50%, with the ultimate goal being the fusion of functional on-demand experience with great passive, radio-station like listening.