Introduction. As technology and science develop, the menstrual cycle can be known practically by using menstrual cycle tracking applications on gadgets. The many features in the application are an added value, so many women choose to use menstrual cycle tracking applications compared to other platforms. This research aims to identify the general level of knowledge or use of the menstrual cycle tracking app among medical students at the Faculty of Medicine Sriwijaya University. Methods. This type of research is des…