iOS Developer Interview Questions: Swift, SwiftUI, and App Store Review
Nov 07,2025 
By Elias Oconnor 
Ready to Ace Your iOS Developer Interview?
Practice unlimited real-life interview questions for Swift, SwiftUI, and App Store review on Huru. Get instant, actionable AI feedback—start for free and walk into your next interview with unstoppable confidence!
The Evolution of iOS Interviews: Why 2025 Demands More Than Just Code
Gone are the days when a few syntax questions could land you an iOS developer job. In 2025, hiring managers expect more: deep Swift expertise, architectural thinking, SwiftUI mastery, user-centric design, and a strategic understanding of the App Store review process. Interviewers want to know if you can build robust, scalable, and compliant apps, not just write code.
What does this mean for you? You must be ready to demonstrate:
- Fluency in Swift—including its latest features and performance best practices
- Hands-on proficiency with SwiftUI for modern interface building and troubleshooting
- Real-world app architecture and problem-solving
- Understanding of App Store guidelines, privacy, and submission workflows
Expect scenario-based questions, live coding, and even UX critiques. Let’s break down what you’ll face—and how to outshine the competition.
Swift Interview Questions & Masterful Answers (2025 Edition)
Swift remains the backbone of iOS development. Interviewers are seeking not only correctness—but also clarity, safety, efficiency, and up-to-date practices. Here are the most relevant and challenging Swift interview questions for 2025, with strategic sample answers:
| Question | What They’re Testing | Pro Tip |
|---|---|---|
| Explain the difference between struct and class in Swift. | Value vs. reference semantics, memory management, protocol conformance | Provide use cases for each—structs for lightweight data, classes for inheritance |
| How does ARC (Automatic Reference Counting) work in Swift? | Memory management, strong/weak/unowned references | Discuss retain cycles and how to break them (e.g., with weak delegates) |
| What’s new in Swift 5.9+ that affects daily development? | Modern syntax, concurrency, language improvements | Mention async/await, improved pattern matching, or macro expansion |
| How would you debug a tricky crash in a production iOS app? | Problem-solving, debugging tools, log analysis | Show familiarity with Xcode Instruments, crash logs, and safe rollbacks |
Don’t just memorize answers—practice explaining your thought process. Huru’s instant feedback helps you refine your delivery by pointing out any unclear or incomplete responses. See more mobile dev questions here.
💡 Key Takeaway
Top candidates blend in-depth Swift understanding with real-world troubleshooting skills and clear communication. Practice with realistic interview scenarios to build this confidence.
SwiftUI Interview Deep Dive: What Interviewers Really Want
SwiftUI isn’t just a “nice to have”—it’s a must for modern iOS roles, especially with Apple’s push for declarative UI. Expect questions that probe both your technical knowledge and your strategic design thinking. Here’s what often comes up:
- How does data flow in SwiftUI? (@State, @Binding, @ObservedObject)
- What’s the difference between View and UIViewRepresentable?
- Show how you’d create a reusable custom component in SwiftUI.
- Debugging: How do you diagnose and fix a misaligned layout?
- What are the performance pitfalls of SwiftUI and how do you avoid them?
Interviewers are looking for candidates who think in declarative patterns and can architect maintainable UIs. See more SwiftUI scenarios.
App Store Review Interview Scenarios: Stand Out with Real-World Wisdom
More companies are grilling candidates on App Store policies, privacy compliance, and the submission process. You could ace the code, but stumble on a question like:
- “Describe the App Store review process. What are the main reasons for rejection?”
- “How do you handle user data privacy and compliance?”
- “Have you ever had an app rejected? How did you resolve it?”
- “What steps do you take to optimize an app’s App Store presence?”
Tip: Familiarize yourself with the official Apple App Store Review Guidelines and privacy requirements (GDPR, ATT, etc).
If you want to see how other mobile devs navigate similar scenarios, read Solving Problems Like A Pro: Your Approach In Interview Scenarios.
💡 Key Takeaway
Strong candidates show a strategic understanding of the App Store landscape, privacy, and compliance—not just coding ability.
Real-World Whiteboard & Coding Scenarios
Expect at least one hands-on challenge—live coding, architectural design, or real-world bug-hunting. These are meant to simulate what you’ll actually do on the job. Here are some examples:
- Implement a custom SwiftUI view with animation and state management. (Talk through your design process!)
- Design a miniature app architecture for a to-do list app (choose between MVC, MVVM, and explain why)
- Debug a memory leak in a Swift class (Pinpoint issues with references and suggest fixes)
- Optimize App Store assets for discoverability (screenshots, keywords, etc.)
Want to practice with instant, AI-driven feedback? Try Huru’s live mock interview platform now.
Beyond Code: Communication, Problem Solving & Culture Fit
Don’t underestimate soft skills. In 2025, top companies want iOS developers who can:
- Explain complex solutions to non-technical peers
- Navigate conflict and accept feedback gracefully
- Demonstrate a passion for new Apple tech, accessibility, and inclusive design
Pro Tip: Huru’s AI feedback includes tips on communication style and active listening—critical for real interview impact. Learn how to Showcase Your Creative Process in interviews.
💡 Key Takeaway
Collaboration, curiosity, and clear articulation set you apart in iOS interviews—practice these as rigorously as you do code!
Pro Tips: How to Practice and Get Instant Feedback 🚀
- Simulate real interviews with Huru’s AI-driven platform for unlimited practice
- Record your answers and study the feedback for clarity, conciseness, and depth
- Mix technical prep with scenario-based and behavioral questions
- Leverage peer review and Huru’s mock interview features to get multiple perspectives
Extra Resource: The best way to cement your skills is through deliberate, structured practice—get started for free on Huru here.
iOS Interview Success Stories: Real Experiences & Advice
Many candidates have used Huru’s smart practice to land jobs at Apple, Spotify, and top startups in 2025. Here’s what worked for them:
- “Practicing daily with Huru’s timed mock interviews made me unfazed by real interview pressure.”
- “The instant feedback on my technical and behavioral answers highlighted blind spots I never saw before.”
- “Recording and replaying my answers built confidence in articulating even the toughest Swift and SwiftUI questions.”
Watch this YouTube guide for more tips:
Frequently Asked Questions (FAQ)
- Q: What’s the best way to prep for a Swift interview in 2025?
A: Mix hands-on code challenges, system design, and scenario-based questions. Use Huru for unlimited mock interviews and feedback. - Q: How important is SwiftUI for iOS developer interviews now?
A: It’s essential. Nearly all new iOS projects are built with SwiftUI. Show that you can ship production-ready UIs and debug issues fast. - Q: Will I be asked about App Store policies?
A: Increasingly, yes. Know key rejection reasons, privacy guidelines, and how to handle resubmissions. - Q: How can I practice behavioral and soft skills?
A: Huru’s AI feedback covers communication, teamwork, and leadership—so you’re ready for the whole interview. - Q: Where can I find more iOS developer interview questions?
A: Check our full mobile dev interview guide.
