Car hire mobile application provides customers with a wide variety of cars to book and order for 24-hours a day. Most car hire customers in Uganda have a limited number of cars to choose from hence the need for the Car hire app. This report is a detailed compilation of all activities we engaged in while developing the car hire mobile application. It involves chapter 1 which is about the background to the problem, problem statement, objectives and the scope, chapter 2 which is about the literature review, chapter 3 which is made up of the methodology, chapter 4 which consists of system study, analysis and design, chapter 5 which is about system implementation, testing and validation and chapter 6 which consists of the conclusion. Some of the problems faced were high costs of data and unstable network connectivity. Due to unstable network, some online interviews and questionnaires were interrupted as they were being carried out, which made the data collection process tedious. The main objective was achieved by successfully developing a car hire mobile application. The project enabled me to apply the knowledge and skills acquired during my course of study at Ndejje University.