The tutorial provides a comprehensive guide to setting up a React Native application with OAuth authentication using FusionAuth as the auth provider, although the React Native code can work with any OAuth-compliant server. It walks through the installation and configuration of FusionAuth, the setup of a React Native project, and the implementation of an Authorization Code grant with the PKCE extension within the app, highlighting the differences in OAuth architecture between web and mobile environments. The tutorial details configuring both iOS and Android for OAuth by modifying specific files and settings, and it includes steps for securely storing access tokens using the `react-native-keychain` package. The final app displays user information retrieved from an OpenID Connect endpoint after successful authentication. The guide emphasizes best practices, such as using a system browser for authentication instead of an embedded user-agent, and provides code snippets for various implementation steps while encouraging customization and further exploration.