This research aims to develop learning media using an android-based leg muscle strength training program application in general period futsal sports, to assist players in doing exercises that suit their needs. The research method used is research and development with reference to the Borg and Gall research steps which are adapted into 7 steps. The subjects of this study were futsal players from Ztofia Futsal Academy and Antares FC. Small group trials were conducted on 10 respondents, large group trials with 20 respondents. The instrument used was a questionnaire and valuation sheet. The data analysis technique used is descriptive statistical analysis. The results of the study show that the development of an android-based leg muscle strength training program application media in general futsal sports is suitable for players and useful as a training medium. The results were obtained from the validation of material experts at 81%, which means good/feasible, and the validation of media experts, which shows an assessment result of 80%, which means good/feasible. In the small group trial, this application received an assessment result of 82%, which was included in the good/feasible category, and in the large group trial, this application received an assessment result of 83%, which was included in the good/feasible category. Thus, the conclusion is that this application is good and worth using.