Flutter is a kit for the UI software development by Google. Flutter is developed with open-source and is used for the development of applications for Android, iOS, Windows, Mac, Linux, Google Fuchsia and the Web. The first version of Flutter had the code name of “Sky” and worked with the Android operating system. Flutter has been developed under four pillars: attractive, fast, productive and open. Flutter offers ample development possibilities, such as 60 fps animations. At the WeAreDevelopers Congress, Martin Aguinis and Matt Sullivan presented some of Flutter’s features to thousands of developers and how this application can be used to work in web development.