What is Flutter exactly?. Pros of Flutter development. + Ready-made and custom widgets for fast UI coding. + The mildest learning curve and a growing community. + Dart - simple and effective language targeted at Java programmers. + Hot reload function for instantaneous updates. + Portability. + Internationalization and accessibility. + High performance. Cons of Flutter development. - Lack of third-party libraries. - Dart, again. - Large file size. - Issues with iOS. How to get started with Flutter. Will Flutter replace React Native and Xamarin?