Development of an integrated system that allows the content currently available inside the website’s private user area to also be displayed inside a mobile application (Android and iOS). All data is already stored and managed through the existing backend (PHP + MySQL) and users currently access their private area via browser, where they find materials and documents — mainly PDF files — organized into folders and sub-folders. The purpose of this project is: Create an API service Develop a REST / JSON API layer to expose the existing backend data Secure authentication with token based on the same login credentials used on the website Endpoints for: Login Reading folder / sub-folder structure Listing files Retrieving direct PDF URLs The API does not manage or create new content: it must only expose what is already uploaded via the website’s backend. Mobile App development Creation of mobile apps (native or cross-platform) for Android and iOS User login with the same credentials used on the website Display of folders → sub-folders → documents Open PDF files directly inside the app Real-time synchronisation with the website content (no duplication of data) Simple and clean UI focused on document consumption