I don’t think they are socialist democracy but social democracy. There is a distinction. I don’t think any country is a socialist country in morden history. There where some movement that were trying to be socialist but it either fell into dictatorship (USSR, North Korea, etc)or it was squashed by USA(Chile, and other central/ south american countries). The most successful one was that of Chile, until US backed coup overthrew the democratically elected government in favour of dictatorship.
It’s not improving it cause apple can use it. It’s improving cause people can use it even after apple is not supporting it or don’t like apple’s OS.