I use 4 because that's how Xcode set it up. I used to use 2, but when you're working in a joint code-base without a linter (almost anything on GitHub) 4 spaces

I use 4 because that's how Xcode set it up. I used to use 2, but when you're working in a joint code-base without a linter (almost anything on GitHub) 4 spaces is the standard.