But it also uses GC even when "compiled to native", so you're not free of things that could make your app stutter. iOS does not use GC. WinPhone did use GC, but

But it also uses GC even when "compiled to native", so you're not free of things that could make your app stutter. iOS does not use GC. WinPhone did use GC, but they spent a lot of time optimizing the hell out of the stuff that runs on the UI thread.