As someone that has been carrying out interviews recenrtly (not iOS) something to consider, make sure you are shouting about your skills. If you have a GitHub account make sure the URL is on your CV (and of course you have projects visible to the ublic, if you dont have one, create one and create some projects show casing what you can do.
Something I have found frustrating when interviewing people is not having something to properly look at, or almost as bad, having cookie cutter projects.
Having apps that you can point too that are on the App Store is great but does not necessarily showcase what you can do, the underlying code could be a mess, but having code available on GitHub will demonstrate your skills and quality of code.
I am a professional Python developer, I did the above myself and this was specifically mentioned in my own interview, in my case I had never worked as a professional developer but had done a lot of personal projects, this gave the interviewers the confidence in what I could do.