Sometimes people feel doubtful about things that happened to their physical health. Especially when there is no place to ask about the pain they feel or experiencing. So usually and are more often they ignoring and underestimate the symptoms they are experiencing. Generally someone knows that minor illnesses such as colds or diarrhea, do not require special examination or complex treatment. The problem is, minor illness could be an indicator of a serious disease. Therefore one must know the symptoms of disease they feel with diagnose the symptoms. To facilitate someone to diagnose the symptoms they experienced, we develop an Android based application that can provide solutions for what they should do when they are experiencing these symptoms, whether they could do their own treatment at home, or should be immediately checked by a doctor. This application using inference forward chaining method. By using this application, diagnostic results of disease can be detected through the consultation process or answering the questions provided by the system quickly and effectively with an Android smartphone as the media.