Coffee app built using React Native is a mobile application designed to enable users to order coffee from their mobile device. The app provides a simple and easy-to-use interface that allows users to browse through a menu of coffee options, customize their order, and submit their order for processing. The app is built using React Native, a popular framework for developing mobile applications that allows for cross-platform compatibility across both iOS and Android devices. This means that the app can be downloaded and used on a wide range of mobile devices.