Smashing the iOS interview

A curated collection of high-impact interview topics for iOS developers.

Each chapter is structured as a simulated conversation between an interviewer and interviewee, covering real-world iOS topics like persistence, concurrency, SwiftUI, architecture, and more. Whether you're preparing for your next iOS role or refining your fundamentals, this guide offers clear explanations, practical examples, and battle-tested insights.

Perfect for developers at any stage of their iOS journey.

Chapters included in this book:

1. Persistence in iOS
2. Memory Management in Swift
3. Understanding Concurrency in Swift
4. Understanding iOS Networking
5. Testing and Debugging in iOS
6. iOS App Architecture
7. SwiftUI State & Architecture
8. Design Patterns in iOS
9. Combine and Reactive Programming in iOS
10. Writing Clean Code with SOLID Principles
11. iOS Connectivity (Bluetooth, Wi-Fi, Peer-to-Peer)
12. React Native on iOS
13. Advanced Debugging in iOS
14. Core Data and Data Persistence
15. Security & Privacy in iOS
16. Advanced Animations and GPU Performance in iOS
17. Internationalization and Localization in iOS
18. App Extensions in iOS
19. ARKit and AR Development on iOS
20. Xcode Project Organization and Build Systems
21. Performance Profiling and Optimization in iOS
22. Advanced Swift Language Features
23. Mastering UIKit in Modern iOS Development
24. Inversion of Control & Dependency Injection in iOS
25. Swift 6 Strict Concurrency, Actors, and Sendable
26. Unsafe Pointers in Swift
27. Advanced iOS Design Patterns
28. Mastering Git for Large iOS Teams
29. Certificates, ATS, and SSL Handling in iOS
30. Provisioning Profiles in iOS
31. Static vs. Dynamic Dispatch in Swift
32. Test-Driven Development (TDD) in iOS

📌 Note:
All the articles in this book are also available behind a paywall on my Medium blog: https://medium.com/@mihaipopa/list/ios-interviews-30bb745acd8e