I am author of this book…
If these are the open items for you and somehow you are struggling:
> MVC or MVVM or something else OR even why any of these?
> UIKit or SwiftUI, which one I choose?
> TDD, does it really matters?
> Why should I know Design Patterns and Design Principles?
> Do I know Swift's hard part?
> Can scripts save my hours?
> and many other questions on the same line...
Then read this book !!
This book will help you build Stable and Less-Buggy iOS App.
The very common problems and their solutions are provided in this book.
I have 11 years of iOS Experience, and all the problems that I faced and resolved, I mentioned in my book.
So leverage my experiences and save your time !!