The first call was with HR, a regular company introduction. The second was a live coding interview and must say that even before starting the interviewer was biased based on my country, he did a comment that they had Android dev from my country in the past and he was pretty much aware of people of my country. Still don't know if the comment was positive or negative, but that's it :) Live coding was very easy, pretty straight forward. Some trick questions for Swift 5.1 and the new Result instead of completion handler which I did answer. I did the UI in Storyboard as it was one table cell, the comment was that UI is done in code in their team which was fine with me I have experienced both ways and can be easily adjusted, but I think the interviewer was not happy I went storyboard way. Other than this the mockup calls were done on the background thread so once I noticed this just put the results on the main thread and everything was ok. Unfortunately, I was rejected after this phased.

Questions were always clear and concise, nothing too tricky. Regular things you'd do at work. You're free to refer to documentation or use google / stack overflow for help whenever needed.