I’ve got an iPod pro - 11 inch 2018 - I just have a tablet that I use to access and play music and also for my own songwriting ... I have no idea what “system” it runs. Sorry it’s like asking me what type of varnish is on my guitar or what seals are on my windows.....I buy it for what it does and don’t want to get involved in technicalities. Apple don’t have any of my band’s music nor an awful lot of other bands’ music. So I buy the cd and record it digitally to iTunes then make it available via various different playlists to my various iPods and iPads. That’s all I want to do. I tunes was great cos I bought music and also recorded albums from cd, as well as videos and tracks our band Outland Revenue made. So what does this now?