This project contains 3 fully functional applications which are connected with each other. Cateree is the application for the customers, Restaurant is the application for the caterers and Rider is the application for the delivery persons. I build all these applications with Flutter framework. To store all the information I used Firebase as the back-end server. I integrated real time location tracking with OSM (Open Street Map) in all the application so that everyone can see the current location of the delivery person in real time. For each order and delivery package the Customer, Rider and the Restaurant will get notifications time to time, for which I used Firebase push notification. The customer can give rating to the restaurants and also can give review and rating to the delivery person after they get the food delivery.