Applied online. Was given a link to a HackerRank challenge that I had to finish within a week. Didn't pass all the test cases but still made it through to the 45 min Skype Interview. Straight forward interview, first 10 minutes talking about myself and my experience. Then I was asked iOS development questions like Frame vs Bound, View-controller Lifecycle, Optional Chaining, etc. Lastly, had to solve 2 coding challenge with any programming language. The interviewer was really nice and helpful but I wasn't prepared enough and didn't make it through to the onsite.