The components of the App are built using the core components of Flutter. The theme also constantly incorporates various other latest technologies.
Flutter ( Mobile app Develop with this framework )
Node Js ( Backend CMS develop on nodeJS and MongoDB )
Flutter is Google’s mobile app SDK for crafting high-quality native interfaces on iOS and Android in record time. Flutter works with existing code, is used by developers and organizations around the world, and is free and open-source
You can buy NODE JS RESTAURANT BACKEND DASHBOARD backend and use with this app. This package includes all the rest API and Angular Dashboard. You can manage all the Menu and Order from that admin dashboard.
If you are looking for RESTAURANT WEB APP take a look at this product . User can order through the website, and it has all the functionality of the app. Through the same Dashboard you can manage Mobile app and Web apps. it will also support PWA in the future releases.