Flutter, developed by Google, is an open-source UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase. It uses the Dart programming language and offers a rich set of pre-built widgets for building beautiful and highly customizable mobile apps.
React Native, developed by Facebook, is an open-source framework for building cross-platform mobile apps using JavaScript and React. It allows developers to write code once and deploy it on both iOS and Android platforms, offering a fast development cycle and native-like performance.
NativeScript is an open-source framework for building truly native mobile apps using JavaScript, TypeScript, or Angular. It provides access to native APIs and UI components, allowing developers to create high-performance apps with a native look and feel.
Appgyver is a no-code platform for building mobile apps with a drag-and-drop interface. It allows users to create fully functional mobile apps without writing any code, making it accessible to non-technical users.