Capture reactions, foods, and context in one private timeline.
Track foods, medications, environments, and symptoms so possible mast cell activation patterns become easier to recognize over time.
- Log foods, ingredients, and meals in seconds
- Symptom check-ins with onset time and severity
- Notes for environments, weather, stress, and sleep
- Photo uploads for labels, plates, and reactions
Tracking that respects bad days
MCAS check-ins can be unpredictable. FlareUp keeps each entry short so you can still log on rough days, while richer context, photos, and notes are there when you have the energy.
Bring a clearer picture to your care team
Use PDF or CSV exports to bring your recent timeline to appointments. Premium unlocks Doctor Visit Mode for an enhanced summary view.
Frequently asked questions
Keep exploring
Food & symptom tracker
Pair every reaction with the foods and ingredients around it.
Autoimmune symptom tracker
Track flares, symptoms, and suspected triggers across autoimmune conditions.
Celiac symptom tracker
Journal gluten exposures, symptoms, and recovery windows.
MCAS symptom tracking guide
An educational guide to using a journal alongside your care.
Flare journal
Capture flares with severity, symptoms, and notes in one place.
FlareUp pricing
Free forever, with optional Premium for unlimited history.
FlareUp is a personal tracking tool and is not a medical diagnostic tool. It does not provide medical diagnosis, treatment, or medical advice. Always consult a qualified healthcare professional.