PlayStations and god knows what is some closed BSD. Apple are not alone in eating the BSD free lunch and giving very little back for it. Kind of the point of the license. It’s why Linux took over in most places, you can’t just take because of the GPL.
iOS is the iphone OS, which is extremely locked down
macOS (Apple’s desktop OS) is something completely different (although probably with similar internals)
Both Darwin.
https://en.wikipedia.org/wiki/Darwin_(operating_system)
Which is why I sometimes call macOS “NonfreeBSD”
And Windows is “NonfreeBS”
PlayStations and god knows what is some closed BSD. Apple are not alone in eating the BSD free lunch and giving very little back for it. Kind of the point of the license. It’s why Linux took over in most places, you can’t just take because of the GPL.