What is your total professional experience in this field?

The total professional experience in iOS development can vary, but for a junior typically it is from 0 to 2 years, for a middle — from 2 to 5 years. Not only the number of years is important, but also the quality of experience: participation in real projects, knowledge of Swift/Objective-C, understanding architectural patterns (MVC, MVVM), experience with UIKit, SwiftUI, Core Data, and other frameworks.

For example, if you have 3 years of iOS app development experience, you are likely to meet the middle level, especially if you participated in the full development cycle and app releases.