This project will develop and pilot-test the Lekker platform - a learning tool aimed at sexual and reproductive health (SRH) behavior change in public school students (12-17 years) in Maputo, Mozambique. The platform includes content on early marriage, family planning, and sexually transmitted infections and diseases and is personalized to match students’ level of education. Accessible online and offline through computers, tablets or smartphones; it uses gamification to keep users engaged. Teachers in public schools will be trained to integrate the Lekker platform in their classrooms.