I had two rounds of interview.

First was a more generic interview. I got a good impression of the company, of the people who were interviewing me, and of the job I was applying for. I got the feeling this was a good place for me.

Second round was a technical round, and I was asked questions about iOS development. The interviewing people were again nice, and I got a good impression that my future colleagues have a similar mindset as I.

Technical questions weren't too difficult for me. I have also interviewed people, and the questions were similar to those I have been asking.

I got accepted, and I felt that people at Oura were really excited about getting me into the company. I also felt very nice during the whole interview process.

I was asked about technical details of developing iOS applications, for example, "What's the difference between class and struct?" and "Do I have some hero stories from my programming career?"