The text details the process of integrating a React Native mobile app with a GraphQL server, which was previously set up using NodeJS and Express. The guide begins with setting up the development environment using Expo, which simplifies the process of building and deploying the app on both iOS and Android devices. It then explains the configuration of the Apollo Client for managing data from the GraphQL server, including necessary installations and the use of components like ApolloProvider. The focus then shifts to setting up navigation using react-navigation and handling transitions between screens. The creation of reusable components such as Button, Card, TextInput, and KeyboardWrapper is described, followed by the development of two main application screens: HomeScreen, which displays notes, and AddNoteScreen, which allows users to create new notes. The integration with GraphQL is achieved through queries and mutations using the Query and Mutation components from react-apollo, facilitating efficient data retrieval and updates. Finally, the text emphasizes the synergy between React Native and GraphQL in creating cross-platform mobile applications that require only specific pieces of information from the server, enhancing efficiency.