This project is an Android application called RentUCar, a peer-to-peer car rental app. In this app, users can sign-up an account using email and then post their rental cars on the platform, and each car listing contains the year, model, pickup location, rental price, detailed description, and pictures of the vehicle. Users looking for a rental car can see all the available vehicles by selecting the rental date and location. The app also provides a chat system that allows users to send messages to each other. The app is created in Java on Android studio. The database, user authentication, and image storage are implemented using Firebase.