Where is the logic of the hybrid application stored?

The logic of a hybrid application is divided into:

1. User interface and business logic: Stored in the web part (HTML, CSS, JavaScript), which runs inside an embedded browser (WebView) or similar component. This is the main part of the logic that manages content display, user interaction, and data processing that does not require direct access to native device functions.
2. Interaction with native functions: Stored in the native shell of the application (developed in Swift/Objective-C for iOS, Kotlin/Java for Android). This part is responsible for accessing the device API (camera, geolocation, notifications, etc.), interacting with the operating system, and may contain platform-specific optimized logic. Data exchange and function calls between native and web parts are carried out through special bridges or interfaces.