SakitApa - simple expert system application for e-Health. It is a standalone application that receives user input about the symptoms of a disease, and gives out what the disease possibly be, how to prevent it, and a prescription of traditional medicine. The diseases mentioned in this application are simple, common, curable diseases in Indonesia, such as headache, diarrhea, constipation, flu, cough, some skin diseases, and some other health ailment. “Sakit apa?” can also give information about some illness and some traditional medicine. This application is made on J2ME platform.