Flutter is an open-source framework by Google. It helps to build beautiful, natively compiled, multi-platform mobile applications from a single codebase.

Whereas React Native is a JavaScript framework. It is used to write real, natively rendering mobile applications for iOS and Android.React Native beautifully bends the features of native development with React, a best-in-class JavaScript library to build best-in-class user interfaces. React native can be used in the existing projects( iOS and Android) or can be used to create a totally new mobile application.

When you compare Flutter and React Native, Flutter stands out best in terms of performance, compatibility and features, and engineering costs. React-native outsmarts Flutter in terms of time to market. Flutter and react-native compete equally in terms of User Interface and Graphics.

Flutter user heavy animations. It demands a uniform design across various platforms. Flutter restricts using third-party packages.Flutter goes for different designs on different platforms. It demands integration with custom libraries. It demands automatically updated design with respect to platforms.

React Native suits well for projects with straightforward functionality and a lot of identical entities. (events, social media, eCommerce, etc)Flutter is ideal for interesting new projects that focus on functional perspective and involve sophisticated computations and animations.

Both Flutter and react native and the cross-platform approach as a whole, have a bright future ahead.