HAPPY App: This app aims to provide a series of interventions for individuals with physical and/or psychological distress during the post-pandemic era. The COVID-19 pandemic has left many people grappling with lingering health issues, anxiety, and stress, highlighting the urgent need for accessible, effective support. The app offers motion-based exercise training, mindfulness training, energy-saving techniques, and self-management animations. The goal is to reduce individuals’ distress levels, enhancing their sustainable self-management abilities, and promote their well-being. It serves as a comprehensive tool to help people recover and thrive in the aftermath of the pandemic, making it an essential resource for improving public health and quality of life.