Passme is a mobile application that simulates a rechargeable contactless smart card electronic money system. The app allows users to have a virtual smart card with digital money stored in it. The primary functionality of the app revolves around scanning valid QR codes to perform transactions. By leveraging this digital platform, Passme aims to transform traditional transaction systems into a more streamlined and convenient digital experience. Github Link:- https://github.com/sunle-af/choo-choo Video Link :- https://drive.google.com/file/d/1v2FqgCq_UPF-wZFo3I26bRLNIxDCH8LW/view?usp=drive_link FlowChart Link:- https://drive.google.com/file/d/1EfRp8DQekVn6iiW5DjHvTkdjO7DZMlmi/view?usp=drive_link