I've stopped using FB app long ago (I think it was when news about their "clever" way of abusing microphone came out). I do use web version on iOS though and it

I've stopped using FB app long ago (I think it was when news about their "clever" way of abusing microphone came out). I do use web version on iOS though and it also sucks, just in different ways. At least it does not suck my battery. While you a right about "app store" kind of apps being forbidden (I've worked on one few years ago. We knew it was doomed, but higher-ups wanted to try anyway) what do you base your "OS system" comment on? I'd say WeChat is even more OS-like and still does fine.