Mobile & Cross-Platform Testing
Mobile testing requires strategies for both native apps (iOS/Android) and cross-platform apps (React Native, Flutter). Device fragmentation — thousands of device/OS combinations — makes automation and device farms essential.
40 min•By Priygop Team•Last updated: Feb 2026
Mobile Testing Strategies
- Appium — Open-source mobile automation. iOS (XCUITest driver) and Android (UIAutomator2). Same API for both platforms
- Device farms — AWS Device Farm, BrowserStack App Automate, Firebase Test Lab. Real device testing at scale without hardware management
- Simulators vs real devices — Simulators fast/free but miss: GPS, camera, biometrics, memory pressure, network variability. Use for development; real devices for release
- Test pyramid for mobile — More unit (70%), some integration (20%), few UI (10%). UI tests are slow and flaky on mobile
- Visual regression — Applitools Eyes, Percy for screenshot comparisons. Catch UI regressions across device sizes
- Network conditions testing — Throttle 3G/4G/offline. Charles Proxy or Proxyman to intercept/mock API calls
- Crash reporting — Firebase Crashlytics, Sentry. Capture real-world crashes with stack traces. Link to test cases
- Sign-in and biometrics — Mock Touch ID/Face ID in automation. Test social login flows (Google, Apple Sign-In)