Involved in handmade bespoke crafty iPhoneOS / iOS apps for quite some time. Got started in Objective-C, moved on to Swift. Worked mostly at startups and now at an established non-startup and not public company.
Why am I here on StackOverflow: I believe the imposter syndrome is quite prevalent among people with any level of experience in programming, hence I try to answer even the simplest of the questions that I can answer, in an easy to understand way. Hope my answers help!