Swift Interview Questions & Assessment
Assess Swift and iOS development skills including optionals, protocols, SwiftUI, UIKit, memory management, and app architecture.
Why Swift Matters
Swift is the primary language for iOS, macOS, watchOS, and tvOS development. With over 1.5 billion active Apple devices, iOS developers remain in high demand.
Sample Interview Questions
Explain optionals in Swift. What are the different ways to unwrap them?
How does ARC work? Explain strong, weak, and unowned references.
Compare SwiftUI and UIKit. When would you choose one over the other?
What are protocols with associated types? How do they enable generic programming?
Explain the Combine framework. How does it compare to RxSwift?
How to Prepare
Master optionals — they come up in every Swift interview
Understand value types vs reference types (struct vs class)
Know both SwiftUI and UIKit — most codebases use both
Practice with async/await and structured concurrency
Understand app lifecycle, view lifecycle, and memory management with ARC
Start practicing
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