Question from the React Native (2023) test

Expo uses only JavaScript to create React Native applications.

There is no differences, Expo is build on top of React Native as a layer of services for developers.

Technically, you can add Expo packages to a vanilla app and benefit from some of the features of the SDK.

Expo is a tool used with the new architecture to release React Native applications to production. It uses hermes to make iOS JavaScript runtime faster.