The National Institutes of Health (NIH) National Institute of Mental Health (NIMH) awarded a $782,069 Project Grant (CFDA 93.242 Mental Health Research Grants) to the University of California, Los Angeles (UCLA) to conduct a randomized controlled trial of a choice-driven, interactive, web-based storytelling app called "Catalina" to investigate mental health treatment initiation among symptomatic Latina women. The study aims to determine the app's effectiveness in catalyzing therapy or pharmacotherapy initiation compared to an informational control condition over 9 months, as well as test the mediating role of factors like help-seeking attitudes and stigma. The project will enroll 876 English and Spanish-speaking Latina participants who are untreated but symptomatic for depression and/or anxiety. All study activities will be conducted online, with the goal of expanding strategies to help symptomatic Latinas overcome barriers and connect to needed mental health treatment through this scalable, low-cost app.