First I would like to praise you for the idea, very well made and implemented. The problem is that at the beginning the app ran on iOS but for days I haven't been able to play songs via the app. I specifically bought the Premium and it doesn't work. Please fix it or do I have to delete it again. As far as the playlist is concerned, it can't be that I have to upload the whole thing to my cell phone, so why do I need the app? Please make it so that you can download the playlist separately and not the entire music archive.