Top 20 Interview Questions & Answers for iOS Developer Roles – 2025

Are you looking to land a job as an iOS developer? Mastering Swift, Objective-C, and the latest iOS development tools is just the beginning. Prepare for your next interview with these 20 questions and answers covering all the essential aspects of being an iOS developer in 2025.

General Questions

• 1. Tell me about your experience developing iOS apps.
  As an iOS developer, my primary role is to design, develop, and maintain mobile applications for Apple devices. I have X years of experience building iOS apps using Swift and Objective-C, with a proven track record of delivering high-quality products on time and within budget.
• 2. What motivates you to be an iOS developer?
  I have a passion for technology and a strong interest in mobile development. I am always eager to learn new skills and take on challenging projects, and being an iOS developer allows me to combine my creativity and technical skills to bring innovative ideas to life.
• 3. What do you think are the most important skills for an iOS developer to have in 2025?
  In addition to having a strong foundation in programming languages such as Swift and Objective-C, an iOS developer in 2025 should also have knowledge of emerging technologies such as augmented reality, machine learning, and internet of things. Good communication, teamwork, and problem-solving skills are also crucial.

Technical Skills & Experience

• 6. Can you walk me through the process of developing an iOS app?
  Sure, the first step is to gather and analyze requirements and create a detailed project plan. Then I start designing the user interface and architecture of the app. After that, I write the code and perform unit and integration testing. Once the app is ready, I submit it to the App Store and monitor its performance.
• 7. How do you ensure your iOS apps are compatible with different iPhones and iPads?
  Apart from using the latest version of Swift or Objective-C, I also follow best practices for designing layouts and using auto layout constraints to ensure my apps are responsive and can adapt to different screen sizes and device orientations.
• 8. Give an example of a complex iOS app you have developed.
  I recently developed an e-commerce app with various features such as user authentication, online payments, product search and filtering, order tracking, and push notifications. I had to implement different APIs and frameworks, optimize the app's performance, and ensure a smooth user experience to make it a success.

Behavioral Questions

• 11. Have you ever encountered a difficult bug in your code? How did you approach and solve it?
  Yes, I faced a bug where the app was crashing on a specific device and iOS version. I used debugging tools such as Xcode's console and crash logs to identify the cause and fixed it by updating my code and running regular tests.
• 12. How do you handle conflicting opinions and suggestions from project stakeholders?
  I believe in open communication and collaboration. I listen to all perspectives and present my ideas in a clear and respectful manner. I also prioritize the app's goals and make evidence-based decisions to resolve conflicts.

Situational Questions

• 16. How would you handle a tight deadline for a critical app update?
  I would start by analyzing the requirements and prioritizing tasks based on the update's urgency. I may also delegate some tasks to team members if appropriate. Regular communication and close monitoring of progress would help me identify and address any issues early on.
• 17. What would you do if a user reported a critical bug in your app?
  First, I would thank the user for bringing the issue to my attention and assure them that I would address it promptly. I would then investigate and fix the bug as soon as possible, run tests to ensure it doesn't occur again, and release an update to the App Store.

Cultural Fit Questions

• 19. What motivates you to work for our company?
  Your company's mission and values align with my own. I am inspired by your commitment to innovation and creating products that make a positive impact in people's lives.
• 20. How do you stay updated on the latest iOS development trends and technologies?
  I follow blogs, attend tech conferences and meetups, and participate in online communities to stay informed and exchange knowledge with other developers. I also make sure to read Apple's developer documentation and watch WWDC sessions to keep up with new tools and updates.