A fantasy sports web and app development company specializes in creating digital platforms that enable users to engage in fantasy sports leagues and competitions online. These companies design, develop, and deploy fantasy sports applications that allow users to create virtual teams composed of real-life athletes from various professional sports leagues.

These platforms typically offer a range of features, including team drafting, player statistics tracking, league management, live scoring updates, social interactions, and more. Users can compete against each other based on the performance of their chosen athletes in real games, earning points and climbing leaderboards based on their team's performance.

Fantasy sports web and app development companies leverage advanced technologies such as data analytics, real-time updates, and user-friendly interfaces to provide an immersive and engaging experience for users. They often integrate third-party APIs to access real-time sports data, player statistics, and news updates, ensuring the accuracy and relevance of information within the platform.