Brief description about flutter.
Flutter is an open-source, cross-platform, UI software development kit created by Google. It can be used to develop applications for all platforms (mobile, IOS, Windows, Linux) while using one codebase.
Why is Flutter popular?
Flutter merges the features and quality of native apps with the power of cross-platform development. Many other cross-platform tools let you write one codebase and use it on other platforms. Unlike Flutter they do not all render the same native app look.