Top 25 Mobile Testing Interview Questions and Answers (2025 Updated)

Top 25 Mobile Testing Interview Questions and Answers (2025 Updated)

Mobile app testing is one of the fastest-growing areas in the QA industry. With Android and iOS dominating the market, companies are looking for testers who understand mobile testing concepts, tools like Appium, and real device challenges. In this blog post, we’ll cover the most frequently asked mobile testing interview questions, suitable for both freshers and experienced testers.

📱 What Is Mobile Testing?

Mobile testing involves testing applications built for mobile devices (smartphones, tablets) to ensure proper functionality, usability, and performance. It includes native, hybrid, and web apps running on different operating systems like Android and iOS.

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🔝 Top 25 Mobile Testing Interview Questions and Answers

1. What is mobile application testing?
   Testing of mobile apps to ensure their quality on real devices or emulators under different networks, screen sizes, and OS versions.
2. What are the types of mobile apps?
   Native Apps, Web Apps, Hybrid Apps
3. What is the difference between mobile app testing and web testing?
   Mobile app testing considers factors like battery usage, memory, gesture handling, network switching, etc., which are not major concerns in desktop web testing.
4. What are the types of mobile testing?
   Functional Testing, UI Testing, Compatibility Testing, Performance Testing, Security Testing, Interruption Testing, Installation Testing
5. What is Appium?
   Appium is an open-source automation tool for testing native, hybrid, and mobile web apps using the WebDriver protocol.
6. Can Appium be used for both Android and iOS?
   Yes, Appium supports automation on both Android and iOS platforms.
7. What is the difference between simulator and emulator?
   Simulator mimics iOS behavior; Emulator mimics Android. Simulators don’t replicate hardware, while emulators do.
8. What tools are used for mobile testing?
   Appium, Espresso, XCUITest, Robotium, Kobiton, BrowserStack, Firebase Test Lab
9. What is mobile device fragmentation?
   The challenge of testing across different OS versions, screen sizes, and hardware types.
10. How do you perform compatibility testing?
    Test the app on multiple devices, OS versions, resolutions, and hardware configurations.
11. What is interruption testing?
    Testing how the app behaves when interrupted by calls, messages, notifications, or low battery alerts.
12. What are the key challenges in mobile testing?
    Device fragmentation, network conditions, OS upgrades, touch gestures, battery usage, screen orientation.
13. How do you test an app in different network conditions?
    Use network simulation tools or manually switch between WiFi, 2G/3G/4G/5G, airplane mode, and no network.
14. What is gesture testing?
    Testing app response to user gestures like tap, swipe, pinch, zoom, drag, etc.
15. What are the common test cases for mobile apps?
    Installation, login/logout, screen orientation, push notifications, in-app purchases, data sync, etc.
16. What is responsive testing?
    Ensuring UI elements adjust properly to different screen sizes and orientations.
17. How do you handle app crashes during testing?
    Capture crash logs, report with steps to reproduce, attach screenshots or device logs using tools like Logcat or Xcode logs.
18. What is the difference between native and hybrid apps?
    Native: Built for a specific platform (e.g. Swift for iOS); Hybrid: Single codebase wrapped in WebView (e.g. Ionic, Cordova).
19. Which is better for testing – real device or emulator?
    Real devices are better for performance, battery, gestures. Emulators are faster for basic functional tests.
20. What is test automation strategy for mobile apps?
    Choose tools like Appium, plan parallel testing, use cloud devices (BrowserStack), and maintain modular test scripts.
21. How do you test push notifications?
    Trigger test notifications from backend/API and verify delivery, UI response, and app state (foreground/background).
22. What is deep linking in mobile apps?
    Deep linking allows users to navigate to a specific part of the app from external links.
23. What is mobile security testing?
    Validating app against data leakage, insecure storage, API security, and unauthorized access.
24. What is monkey testing in mobile?
    Random tapping, swiping, shaking, or performing unexpected actions to find crashes or bugs.
25. How do you perform localization testing?
    Test the app in different languages, regions, and timezones to verify proper translation and formatting.

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📄 Bonus: Sample Manual Test Cases for a Mobile Login Page

Test Case ID	Scenario	Expected Result
TC001	Valid username and password	User should be logged in
TC002	Invalid password	Error message shown
TC003	Switch orientation during login	Form should remain stable
TC004	Interruption by call	App should resume login screen

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🧠 Interview Tips

• Learn both Android and iOS differences
• Practice Appium scripts for login, swipe, drag-drop
• Focus on real device testing scenarios

👋 Hi, I'm Suriya — QA Engineer with 4+ years of experience in manual, API & automation testing.

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