 The study presents a digital health platform, ProACT, designed to support older adults with multi-morbidity in self-managing their conditions at home. The platform was evaluated through a 12-month trial with 120 participants in Ireland and Belgium. Findings show that the platform was usable and of low burden, with participants reporting multiple benefits including improved self-management and well-being. Potential reasons for engagement include user-centered design, integration of behavior change techniques and personal analytics, and provision of triage and technical support services. This article was authored by Julie Doyle, Emma Murphy, Shane Gavin, and others.