In Flutter, both FutureBuilder and Consumer are used to manage state and retrieve data, but they serve different purposes and are used in different scenarios. Here's a detailed explanation to help you decide when to use each: FutureBuilder Use FutureBuilder when: Fetching Data Asynchronously: When you need to fetch data that is asynchronous, such as making network requests, database queries, or performing I/O operations. FutureBuilder listens to a Future and rebuilds the widget when the future completes. One-Time Data Fetch: When the data needs to be fetched only once, such as on screen initialization. Useful for scenarios where you don't expect the data to change and don't need real-time updates. Handling Different States: When you need to handle different states of data fetching (loading, success, error) in the widget tree. FutureBuilder provides a convenient way to show different UI based on the state of the Future . Consumer Use Consumer when: Using a State Mana...