Keys to Bioethics is an app that provides users with a virtual bioethics manual dedicated mainly to young people, and available in Italian, Spanish and English. The manual consists of questions and answers to fundamental existential questions: the development of the human being from conception, sexuality and gender, illness and death, abortion and research on stem cells, euthanasia and organ transplants. The project was carried out by the Dicastery for Laity, Family and Life in collaboration with the Jérôme Lejeune Foundation and presented during the WYD in Panama 2019.