Through the years it seems like I've tried all of the apps and nothing seems to work well. I eventually just resigned myself to using the Google Music but still have problems. I live and work out in the boonies and there seems to be a lot of the music that won't play unless I'm connected to the internet and that just isn't always possible. I still keep all of my music on iTunes because I still use an iPod Nano for the gym. I've tried iSyncr and it didn't sync everything.