Native App Testing
Native app testing verifies applications built specifically for one platform using that platform's own languages and frameworks — Swift or Objective-C for iOS, Kotlin or Java for Android — giving the most complete access to platform-specific features, and requiring platform-specific automation tools for each.
Because native apps are built separately for each platform, they need to be tested separately too — a bug on iOS doesn't imply the same bug exists on Android, and vice versa, since the underlying implementations are entirely distinct codebases sharing only a product concept, not code.
Testing typically uses platform-native tools (Espresso for Android, XCUITest for iOS) for tight integration and reliability, or a cross-platform tool like Appium when a team wants one shared test suite covering both platforms at some cost to platform-specific test depth.
