Hello! I am developing an app that will handle user data that can be extremely private.

My issue is that it seems nobody provides a good in-depth look into application security for solo iOS developers programming in Swift. There are courses for SwiftUI or even other programming languages, but Swift is always left out, and it is making me wish I learned something else! I am even at a university getting a diploma in I.T. with a cybersecurity class that isn't "at that level" when it comes to basics like hiding API keys.

I ask you, Apple community, what resources are there for developers looking to research application security or persistence for Swift, as I haven't found anything good yet? I would prefer a cheap alternative, but realistically that'll never happen. I also sometimes struggle to understand the Apple Developer docs and would prefer something that is a little more comprehensive – yet simplified in explanation.

Thank you for your time!