Depression Test is a mobile self-test application that is aimed at facilitating the self-evaluation of the symptoms possible of depression by the user. The app is founded on Patient Health Questionnaire-9 (PHQ-9), which is a scientifically valid screening tool widely used as a method by mental-health professionals to understand the extent of depressive symptoms. Users respond to nine brief questions in accordance with the way they have been feeling in the last two weeks, and the application will give a score, which shows the potential severity of depression. The app will be used to help users develop self-awareness and take professional assistance when needed. It should be mentioned that the test is merely a screening and not a diagnosis.