MCAS Tracker: Track & Care

MCAS Tracker is a quiet, private companion for living with Mast Cell Activation Syndrome and histamine intolerance. Built around a "Clinical Sanctuary" design language — Deep Navy and Soft Teal, gentle typography, no red dots — it helps you understand your patterns without ever feeling clinical or cold. What you can do • Log symptoms in 15 seconds with a flare-aware severity slider and an MCAS-specific symptom catalog. • Track triggers (foods, environmental, hormonal, emotional) and watch the app surface trigger-to-severity correlations. • Manage your medication regimen — stabilisers, H1 / H2 antihistamines, rescue, supplements — with reminders, dose history and adherence rings. • Record allergies, conditions, doctor visits and lab results in one Medical ID view that responders can read in seconds. • Open a one-tap Emergency Plan with anaphylaxis steps, primary contact dial-out and severe allergy summary. • See a 7 / 30 / 90 day Trends dashboard — severity curve, weekly bars, top symptoms and trigger correlations, plus calm AI-style insights. • Build a Supportive Protocol of daily routines (hydration, diet phase, breathwork, movement) with a check-in ritual. • Keep a private journal with notes, mood, sleep, hydration, exercise and food histamine flags. Privacy-first by design • Offline-first. All data lives on your device in an encrypted local store. • No accounts, no tracking, no ads. We never sell or share your data. • Export everything as JSON anytime from Profile → Export. Built for the MCAS community The app was shaped around feedback from people navigating MCAS, histamine intolerance and complex chronic illness. Brain-fog-friendly defaults, gentle language, and zero red dots — because tracking should be self-care, not another job. Note: MCAS Tracker is a personal tracking tool. It is not a medical device and does not provide diagnosis or medical advice. Always consult your clinician.