To be frank, in order to maintain a business, you can't just do all the things alone. So it's really common to have more than one person as the founders of a company. The idea is, it's better to have at least one partner who is growing the same direction as yours. So a technical person would be the best candidate, i would say.
I would really prefer using storyboards that debugging through each line of codes. Not to mention the hierarchy of views that makes it hard to read sometimes. Autolayout is fantastic but i'm not sure about the limitation when it comes to complex UI(it's kind of vague for the term complex actually). Apple introduces a new feature on autolayout this year where you can install/ uninstall constraints depending on size classses. This is really helpful if you care about the app orientation.