A free, offline-first COPD self-management app with 12 tracking modules. 100% local storage, zero data upload. Track lung function, SpO2, symptoms, medications, and more. Key features: OCR report recognition, trend charts, health screenings (PHQ-2/GAD-2/SARC-F), GOLD 2026 risk assessment, photo gallery, action plan, vaccination tracker, smart reminders. Try the live demo: copd-selfcare.netlify.app