The intersections of health technologies with the Culture of Movement have become increasingly evident, demonstrating the need to build a solid pedagogy that guides their inclusion in Physical Education at school. With the aim of problematizing the use of fitness applications by high school students, with the aim of promoting a critical education on the topic of health mediated by technological devices and applications, the research adopted a qualitative approach and a case study in a pedagogical intervention at the Federal Institute of Science and Technology of Rio Grande do Norte, Parnamirim campus. With 80 students, the intervention followed two classes of the 4th year of the Computer Science course of the Integrated High School, in the morning and afternoon shifts, which contributed to answering the question of how to use health technologies in a critical and pedagogical way in Physical Education at school, anchoring itself in the hacker culture and media education to develop application projects from a broader perspective of health. The projects demonstrated that there are different ways of thinking about health through the diversity and plurality of students. Thus, we analyzed in which aspects they moved away from or closer to the fitness discourse and how inspiration from hacker culture allowed us to think about the counterflow of fitness imperatives to recreate them from a critical point of view.