iOS Interview Questions For Freshers
  1. What is the difference between a View and a ViewController in iOS?
  2. How do you add a UIButton in an iOS app?
  3. What is Auto Layout and why is it important for iOS app development?
  4. How do you create a custom UITableViewCell in iOS?
  5. What is the difference between a Swift class and a struct?
  6. What is a closure in Swift?
  7. How do you pass data between ViewControllers in iOS?
  8. What is the difference between a synchronous and an asynchronous network request?
  9. How do you add an image to a UIImageView in iOS?
  10. What is Core Data and how is it used in iOS app development?
  11. How do you use UserDefaults to store data in an iOS app?
  12. What is a delegate in iOS app development?
  13. What is the difference between a for loop and a while loop in Swift?
  14. How do you use the UIImagePickerController to take a photo in an iOS app?
  15. How do you implement the UITableViewDataSource protocol in Swift?
  16. What is the difference between a constant and a variable in Swift?
  17. How do you add a UISlider to an iOS app?
  18. What is a guard statement in Swift and how is it used?
  19. How do you use the UIAlertController to display an alert in an iOS app?
  20. Can you give an example of an iOS app that uses geolocation to provide location-based services?
  21. What are some common UI design patterns used in iOS app development?
  22. What are some best practices for handling user input in an iOS app?
  23. What is the role of the AppDelegate in an iOS app?
  24. Can you explain how to use an HTTP request to retrieve data from a web service in an iOS app?
  25. What are some common methods for storing data in an iOS app?
  26. Can you give an example of an iOS app that uses local notifications to provide reminders or alerts to the user?
  27. What is the role of the storyboard in an iOS app?
  28. Can you explain how to use the UITableViewDataSource and UITableViewDelegate protocols to display data in a table view?
  29. What are some common debugging techniques used in iOS app development?
iOS Intermediate Interview Questions
  1. What is the difference between an unwind segue and a normal segue in iOS app development?
  2. How do you use GCD to perform background tasks in iOS app development?
  3. What is the difference between a synchronous and an asynchronous dispatch queue in GCD?
  4. What is the difference between a serial and a concurrent dispatch queue in GCD?
  5. How do you use the MapKit framework in iOS app development?
  6. How do you use the CoreLocation framework in iOS app development?
  7. What is the difference between a push notification and a local notification in iOS?
  8. How do you use the AVFoundation framework to play audio and video in an iOS app?
  9. What is the difference between an NSOperation and a GCD dispatch queue in iOS app development?
  10. What is the difference between a weak and a strong reference in Swift?
  11. How do you implement the UICollectionViewDataSource and UICollectionViewDelegate protocols in Swift?
  12. What is the difference between a UITableViewController and a UIViewController in iOS app development?
  13. What is the difference between a URLSession and an Alamofire network request in iOS app development?
  14. How do you use the MKAnnotation protocol to display custom annotations on a map in an iOS app?
  15. How do you use the UISearchController to implement search functionality in an iOS app?
  16. What is the difference between a computed property and a stored property in Swift?
  17. How do you use the AVPlayerViewController to play videos in an iOS app?
  18. How do you use the URLSessionDownloadTask to download a file in an iOS app?
  19. How do you use the UICollectionViewFlowLayout to create a custom layout in an iOS app?
  20. How do you use the UIGraphicsImageRenderer to draw custom graphics in an iOS app?
  21. Can you explain how to use Core Data to store and retrieve data in an iOS app?
  22. What are some best practices for managing memory in an iOS app?
  23. Can you give an example of an iOS app that uses push notifications to provide real-time updates to the user?
  24. What are some common design patterns used in iOS app architecture?
  25. Can you explain how to use the URLSession to download and display data in an iOS app?
  26. What are some best practices for optimizing the performance of an iOS app?
  27. Can you give an example of an iOS app that uses Core Location to provide location-based services?
  28. What are some common methods for implementing authentication and authorization in an iOS app?
  29. Can you explain how to use the UITableViewDataSource and UITableViewDelegate protocols to display data in a table view?
  30. What are some common techniques for implementing animations in an iOS app?
iOS Interview Questions For Experienced
  1. How do you implement the MVP (Model-View-Presenter) architecture in iOS app development?
  2. How do you use the Combine framework to implement reactive programming in an iOS app?
  3. How do you use the SwiftUI framework to create user interfaces in an iOS app?
  4. How do you use the ARKit framework to create augmented reality experiences in an iOS app?
  5. What is the difference between a dispatch queue and an operation queue in GCD?
  6. How do you use the CoreML framework to implement machine learning in an iOS app?
  7. How do you use the Vision framework to implement computer vision in an iOS app?
  8. What is the difference between a static and a dynamic framework in iOS app development?
  9. How do you use the AVAssetWriter to record audio and video in an iOS app?
  10. How do you use the CoreAnimation framework to create custom animations in an iOS app?
  11. How do you use the CoreGraphics framework to create custom graphics in an iOS app?
  12. What is the difference between a local notification and a push notification in iOS app development?
  13. What is the difference between a URLSession and an Alamofire network request in iOS app development?
  14. How do you use the AVAudioEngine to implement audio processing in an iOS app?
  15. How do you use the AVSpeechSynthesizer to implement text-to-speech in an iOS app?
  16. How do you use the CoreBluetooth framework to implement Bluetooth communication in an iOS app?
  17. What is the difference between a raw pointer and a smart pointer in Swift?
  18. How do you use the CoreImage framework to implement image processing in an iOS app?
  19. How do you use the Metal framework to implement high-performance graphics in an iOS app?
  20. How do you use the CoreText framework to implement custom text rendering in an iOS app?
  21. Can you explain how to use the AVFoundation framework to implement custom video recording and playback in an iOS app?
  22. What are some best practices for implementing accessibility features in an iOS app?
  23. Can you give an example of an iOS app that uses machine learning to provide personalized recommendations to the user?
  24. What are some common techniques for implementing security features in an iOS app?
  25. Can you explain how to use the Core Animation framework to create complex animations in an iOS app?
  26. What are some best practices for implementing localization and internationalization in an iOS app?
  27. Can you give an example of an iOS app that uses the ARKit framework to create immersive augmented reality experiences?
  28. What are some common methods for implementing background tasks and multitasking in an iOS app?
  29. Can you explain how to use the AVSpeechRecognizer to implement voice recognition and dictation in an iOS app?
  30. What are some best practices for implementing error handling and exception handling in an iOS app?