I was contacted via mail, a recruiter saw my linked in profile, over the phone he had a few basic iOS questions, after that I had another phone Interview with "live coding" again, some iOS questions, this time not so basic and a few problems to solve in the editor. At the end I had an Interview in person with 4 different guys. Mainly solving code problems on a whiteboard and few general questions. One of the interviews was about Architecture, that one was the toughest for me, because I never did something like that, In general I never had an Interview process like this.