The following document presents the development process of an interactive mobile application, as a support strategy for the teaching - learning process in the area of mathematics, for students of the Educational Experience (EE), Fundamentals of Mathematics at the Faculty of Statistics and Informatics. Using User Centered Design (UCD), which proposes to put the client at the center of research and design, to obtain an application that achieves a user experience (UX), satisfactory, when interacting with the application, allowing greater speed in the completion of tasks, which is simple to learn and intuitive, this to increase its pleasure and ease of use for the beneficiary, obtaining these results with usability tests to the application. All this because currently many applications are known as support in the area of mathematics, which have usability problems obtaining a bad UX. This work follows a user-centered methodology to create usable applications and a good UX for university students in the area of mathematics.