# App An **app** maps to a product or application that you track within Reflag. You can have multiple apps setup within Reflag. An app can have multiple [environments](https://docs.reflag.com/product-handbook/concepts/environment) with features within it. ### Definition An **app** maps to a product or application that you track within Reflag. You can have multiple apps setup within Reflag. The following entities are managed at the app level: * [Features](https://docs.reflag.com/product-handbook/concepts/feature) * [Feature views](https://docs.reflag.com/product-handbook/concepts/feature-view) * [Company segments](https://docs.reflag.com/product-handbook/concepts/segment) * [Release stages](https://docs.reflag.com/product-handbook/concepts/release-stage) While the definitions of features and company segments are app-wide, the data they aggregate is [environment](https://docs.reflag.com/product-handbook/concepts/environment) specific. ### Next steps * Learn about [features](https://docs.reflag.com/product-handbook/concepts/feature) or [company segments](https://docs.reflag.com/product-handbook/concepts/segment), * Learn how to [manage your apps](https://docs.reflag.com/product-handbook/creating-and-managing-apps) within Reflag UI. \