What is an app component in Power Apps?

An app component in Power Apps is defined as a reusable element or control that can be utilized across multiple screens within an application. This feature enhances development efficiency by allowing developers to create components once and use them wherever needed in the app, promoting consistency and reducing redundancy.

App components can include a variety of controls such as buttons, text inputs, or galleries that encapsulate specific functionality, making it easier to maintain and update the application. By using components, developers can ensure that any changes made to a component reflect across all instances, thus simplifying the overall app management and design process.

Other options, while relevant to various aspects of app development or data management, do not encompass the essence of what makes an app component in Power Apps distinct. For instance, a unique codebase for each application would suggest a lack of reusability, while security features are focused on data protection, and importing data pertains to data integration rather than the UI aspect of app development.