The Depression Test is designed to help users track depressive symptoms over time. The home screen has three tabs: Test, Results, Info. The Test tab prompts you to launch the PHQ-9, a validated tool to detect the presence of depressive symptoms over the past two weeks. Once the questionnaire has been completed, a score is returned which can be saved in the app. Under results, the user can view all previously saved scores on a graph, depicting patterns and change over time. The Info tab provides the user with educational information about depression symptoms, causes, treatments and self-help guide. Other features include setting a weekly reminder to complete the survey.