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App Store Apps > Health & Fitness > MCAS Journey
MCAS Journey icon

MCAS Journey

by Onrival LLC · Health & Fitness · Free
On the App Store since September 2026 · Data updated 2026-11-03

MCAS Journey is made and published by Onrival LLC. AppBrain is an independent app data site and isn't affiliated with Onrival LLC. The app name, icon, screenshots and description belong to Onrival LLC and are shown as published on the App Store.

AppBrain's verdict

Last updated
September 4, 2026
Size
63.3 MB
Official page on the App Store

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Store listing

By Onrival LLC, from the App Store
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Screenshots by Onrival LLC, from the the App Store listing
Description by Onrival LLC Written by the developer, not by AppBrain. Click to read.
Join 200,000+ users in the Health Journey Community.

MCAS Journey is an AI health tracker that connects your mast cell reactions, severe histamine responses, and daily habits to help you identify personal triggers and manage flare-ups. Built for quick, customizable logging, it links your hives, flushing, respiratory shifts, and brain fog with your medications, lab markers, stress, sleep, diet, and environment so you can manage your health with confidence.

COMPREHENSIVE DAILY TRACKER (80+ BIO-MARKERS)
- Cutaneous & Flush Reactions: Track hives (urticaria), sudden flushing, itching, dermatographism, and facial swelling.
- Respiratory & Cardiovascular: Log shortness of breath, wheezing, throat tightness, dizziness, and blood pressure shifts.
- GI & Histamine Flares: Record severe bloating, abdominal cramping, nausea, diarrhea, and acid reflux.
- Neurological & Systemic: Track brain fog, chronic fatigue, dysautonomia spikes, headaches, and body aches.
- Environmental & Food Triggers: Track high-histamine foods, temperature shifts, stress, chemical exposures, and exercise.
- Custom Trackers: Add your own unique symptoms, custom triggers, and tailored bio-markers.

INTEGRATED HEALTH TOOLS
- My Flare-up Log: Record acute allergic flares, anaphylactic episodes, and reaction spikes to isolate immediate triggers.
- My Meds: Log H1/H2 blockers (Cetirizine, Famotidine), Cromolyn Sodium, Xolair, EpiPen, and targeted supplements.
- My Labs: Track Tryptase, Histamine, Chromogranin A, IgE panels, and routine immune markers over time.
- My Care Team: Store contacts, log visit notes, prepare AI-guided questions, and export doctor PDF reports.
- My Health Score: Monitor overall health score, reaction trends, and medium-term progress over time.
- My Assessments: Take clinical screenings to track MCAS severity, histamine impact, and quality of life.
- My Goals: Get actionable goals tailored to your context—like low-histamine choices, pacing, or hydration.

PERSONALIZED AI LEARN & INSIGHTS
- AI Health Companion: Ask anything about your health and get real-time answers based on your history.
- Daily Journal: Get supportive insights on daily triggers—e.g., balancing food choices with stress or sleep.
- Knowledge Center: Get instant answers from medically reviewed sources tailored to your symptoms and history.

WHY MCAS JOURNEY?
- Privacy-First: Your health data is 100% encrypted and never sold.
- Multi-Condition Tracking: Manage overlapping symptoms and multiple conditions.
- Clinical Reports: Easily export PDF summaries for your doctor.
- Enterprise Security: HIPAA-ready, GDPR compliant, and AES-256 encrypted.
- Global Support: Available in 20+ languages.

IDEAL FOR
- Conditions: Mast Cell Activation Syndrome (MCAS), Mastocytosis, Histamine Intolerance (HIT), Dysautonomia, POTS.
- Symptoms: Hives, Anaphylaxis, Flushing, Brain Fog, Severe Bloating, Low Blood Pressure, Wheezing.
- Specialized: Multi-Condition Tracking, Overlapping Symptoms, Low-Histamine Logging, Flare Prevention.


IMPORTANT DISCLAIMER: This app is a personal symptom and data logging tool and is NOT a medical device. It does not diagnose, treat, or cure any condition. Always consult a licensed healthcare professional for medical advice, diagnosis, and treatment.

Privacy: https://mcasjourney.flutterflow.app/privacy
EULA: https://mcasjourney.flutterflow.app/termsAndConditions

--
Health Journey Labs by Onrival LLC
Supporting women's health, chronic conditions, autoimmune diseases, and complex health journeys.

Learn more at healthjourneylabs.com
Official page on the App Store

Safety and technology

Found in the app by AppBrain
Price
Free
App size
63.3 MB
Content rating
High

Technologies used by MCAS Journey

Releases

Updates seen on the App Store
Version
2.0.2
Launched
September 2026

No changelog data

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About the app and developer

About MCAS Journey

MCAS Journey is a health & fitness app developed by Onrival LLC.

User Ratings

The app has no ratings yet.

App Information

MCAS Journey is freely available from the App Store. The app size is 63.25 MB. The latest version available is 2.0.2. The last update was on September 4, 2026.

Technical Requirements

The app has a content rating of High Maturity. The app has been available on the App Store since September 2026.

Developer information for Onrival LLC

Onrival LLC

Address:

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