Please do not waste your time. They took 5 round of interview along with 1 coding challenge. Surprisingly after clearing all 4 technical rounds and 1 coding challenge they rejected on last final round where there was no technical question And if you go through other reviews also they did same things.. Simply taking interview and rejecting. Dont attend their interview.. At the end you will get only frustration...

The interview process includes a take away assignment for a week followed by pretty basic first round of interview based on assignment and general iOS topics like Combine, async await and concurrency. You won't be able to get further calls even if you answer everything correct.