UniYu is an online platform developed by young graduates in Montreal that allows students to share notes, express opinions, and interact with other students. It provides a simple and intuitive interface for students to find out what is happening on their campus, buy or sell textbooks, and make informed choices about classes, professors, and student clubs based on ratings and comments from other students. The platform aims to create an inclusive and fun campus environment by empowering the student community and meeting their daily needs.