Immensus is an AI-based fitness application for different sports that uses computer vision to detect users’ movement, analyze mistakes and suggest ways of improvement. While competitors focus only on either functionality of the fitness application or its user experience, Immensus creates a computer-vision technology embedded in the smartphone that is both functional and easy to use. Immensus has already launched a test version for boxing. The application can detect and evaluate boxing punches with an accuracy of more than 90 %. The application works in 60 FPS mode, making it possible to predict such fast movements that even the ordinary human eye struggles to detect. Our mobile application will allow people worldwide to stay healthy and fit while wasting minimum time for training. More and more people can't find time to go to the gym and train with a coach. Through our mobile application, people will achieve the same experience of training with the coach, using just their smartphones. Moreover, people will understand their mistakes and realize how they can improve, thus efficiently achieving their goals in sports and fitness