WebViews are integral components of hybrid applications, blending native and web app functionalities to enhance user convenience by embedding browsers directly into apps, thus avoiding disruptions caused by external browser launches. These components allow for seamless updates in app content without full application updates, as seen in apps like Instagram. WebViews facilitate cross-platform development, reducing costs and enabling easier transitions to app stores through frameworks like Ionic. Testing WebViews involves checking their functionality under various conditions such as network modes and device orientations while ensuring that hyperlinks and external app launches perform as expected. Tools like Espresso-Web assist in testing by examining WebView UI components, though alternative methods focus on interacting with WebViews through Android View objects without requiring source code analysis. Harshit Paul, a product growth specialist at LambdaTest, explores these facets, emphasizing the importance of WebViews in modern app development.