The best illness apps on iPhone average 4.6★ across 208+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
This AI-powered app helps women with chronic and hormonal health conditions track symptoms, medications, and lifestyle factors. It generates clear, doctor-ready insights to identify patterns and prepare for appointments with confidence.
Manage energy-limiting health conditions like Long Covid and ME/CFS through personalized pacing insights. Track biometrics, log symptoms, and understand patterns to reduce crashes and improve daily well-being. Share health reports with your doctor and contribute to research.
This app helps you understand and manage your health by tracking symptoms, triggers, and treatments. It allows you to identify patterns and correlations to gain better control over chronic illnesses, pain, mood, and more. Securely store and analyze your health data to share with your doctor.