This final paper presents topics related to UI/UX design and their application in the leading tool of its kind - Figma. UI/UX design is a set of disciplines and processes for creating an intuitive, eye pleasing and functional user interface. A prototype is a sample or a model of a product created to test its very concept. The purpose of its execution is the participation of the user in the creation, which leads to their satisfaction and facilitates the implementation of the system, since the user knows what to expect. The first step in creating this paper was to research and describe the features of user interfaces of modern mobile applications in the web environment. This is followed by topics of description, features and capabilities of UI/UX design tool Figma, definition of technical and graphic features of the mobile application, and formation of a development plan. "Bloomify" is based on the idea of "a quick gift at the door" and would work in a way that allows the user to deliver a personalized bouquet of flowers to the desired person. Finding flower shops not far from the user, communicating with them, creating a personalized message with the bouquet and tracking the order are just some of the options that the imagined application offers. Based on the plan, which presents the process of developing the application's interactive user interface, a conclusion was made. It emphasizes the advantages and disadvantages of the presented methodology and briefly explains how the created prototype could be transformed into a fully functional application.