ABSTRACT
OBJECTIVE: To construct and validate a mobile application for health education about COVID-19. METHOD: Methodological study, developed in six stages, in the state of Rio de Janeiro, between June 2020 and August 2021, with 20 health professionals, using an electronic form. Validation took place through the Content Validity Index, whose indexes should be greater than or equal to 80%. RESULTS: The application called ROBOVID was constructed and validated by expert judges on the subject, with a Content Validity Index of 100% for the domains of content and cultural adequacy, and with a variation of 90 to 100% for the domains of language, illustration, and presentation, achieving 97% on the Overall Validity Index and 98% on the "ten golden rules" for use in health education. CONCLUSION: The ROBOVID application proved to be a valid technological tool for health education about COVID-19 among the Brazilian population.