Flutter is a complete frontend software development kit (SDK). It allows you to build full, production-ready applications, handling everything from user interfaces to deep application logic.
The confusion usually arises because of how Flutter splits its responsibilities with its underlying programming language, Dart.
Flutter handles the UI: It manages layout, rendering pixels, animations, gestures, and UI state.Dart handles the Application Logic: It handles asynchronous programming, HTTP/API requests, local database management, stream manipulation, and data serialization. Because Flutter is built with Dart, you write all of this logic right inside your Flutter project.