---
id: introduction
sidebar_position: 1
title: Introduction
---

Understanding The UI Package Of The Flutter SDK

### What function does `stream_chat_flutter` serve?

The UI SDK (`stream_chat_flutter`) contains official Flutter components for Stream Chat, a service for building chat applications.

While the Stream Chat service provides the backend for messaging and the LLC provides an easy way to
use it in your Flutter apps, we wanted to make sure that adding Chat functionality to your app was as quick as possible.

