Flutter is an open-source UI software development kit created by Google. It is used to develop cross platform applications for Android, iOS, Linux, Mac, Windows, Google Fuchsia, and the web from a single codebase. This means one can use one programming language and one codebase to create two different apps (for iOS and Android).

Flutter’s widgets incorporate all critical platform differences such as scrolling, navigation, icons and fonts to provide full native performance on both iOS and Android.

Flutter consists of two important parts:

An SDK (Software Development Kit) which is a collection of tools that are going to help you develop your applications. This includes tools to compile your code into native machine code (code for iOS and Android).

A Framework (UI Library based on widgets) is a collection of reusable UI elements (buttons, text inputs, sliders, and so on) that you can personalize for your own needs.

The major components of Flutter include:

• Dart platform
• Flutter engine
• Foundation library
• Design-specific widgets
• Flutter Development Tools (DevTools)

The Benefits of Flutter:

• Low-cost app development
• Similar to native app performance
• Own rendering engine
• Simple logic implementation
• Amazing design
• Customizable kit of widgets