MoodTracker+ is an application that helps to track individual mood swings in the form of a mood diary. As a product of the Adolescent Mental Health project, the app also provides information to improve understanding of mental health issues, as well as guidance on ways to help improve mental health. mental health.Solutions to support mental health promotion for adolescents proposed by the project, including this application, are being tested at a number of middle and high schools in Khanh Hoa and Nghe An provinces.In the current testing phase, only project members can use the application.