This lecture, delivered by Dr Joana Borrego Pinto, explores the Swiss Transplant Cohort Study (STCS) app ecosystem and its role in supporting data collection, coordination and collaboration across transplant centres. The session provides a guided tour of the platform, presenting its architecture, core applications and user workflows, and shares practical project management insights from the development and long-term operation of a complex digital research infrastructure. Key challenges, governance approaches and lessons learned are discussed, offering valuable perspectives for researchers, data stewards and project managers involved in cohort studies and digital health environments. https://youtu.be/DMkaVUXkWxw