What is Flutter?

What is Flutter?

Flutter is an open-source UI framework developed by Google. It uses the Dart programming language and aims to build iOS, Android, web, desktop, and embedded interfaces from one codebase.

How Does It Work?

Flutter interfaces are built as widget trees. Buttons, lists, pages, animations, and themes are all described as widgets. Instead of relying directly on each platform’s native UI controls, Flutter draws the interface through its own rendering engine, which helps produce consistent visuals across devices.

During development, hot reload lets developers see code changes without fully restarting the app. When an app needs native camera, location, notification, or payment SDKs, teams use platform channels or packages from the Flutter ecosystem.

Business Use

Flutter is useful for teams that need to release on iOS and Android at the same time. It can support MVPs, field-service apps, customer portals, fintech screens, and brand-controlled interfaces with one product team.

Compared with React Native, Flutter provides a more integrated UI layer. Project decisions still need to consider Dart expertise, package maturity, app size, and any highly specific native integrations.