Peru, like the rest of the world, has been affected in many ways by the COVID -19. The education sector was not immune to this situation. Face-to-face classes at all levels of education were canceled, education had to migrate to virtual classes. In this context, virtual educational applications took a more significant role in the teaching and learning processes, usability a critical attribute that must be considered in this platform. This research aims to measure the usability of the leading educational virtual applications currently used by the National University of San Antonio Abad del Cusco in its teaching and learning process: Google Classroom, Google Drive, and Google Meet. The study has a quantitative approach and descriptive scope with non-probabilistic sampling. To measure the usability of these applications, the System Usability Score (SUS) questionnaire was applied to an appro...