Comparison

MCAS Tracker vs My Tummi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MCAS Tracker

This app helps individuals manage Mast Cell Activation Syndrome by tracking symptoms, food intake, and environmental triggers. It offers advanced analytics to identify patterns and provides secure, exportable reports for healthcare providers. The app aims to offer clarity and actionable insights for better health management.

Highlights
  • Symptom tracking (hives, itching, flushing)
  • Food and supplement logging
  • Trigger identification (environmental, emotional)
  • Advanced analytics and correlation analysis
  • Medication tracking
  • Daily health journal
  • Secure, exportable reports
Features
Read full description

This MCAS Tracker helps you manage mast cell activation symptoms through structured tracking, advanced analytics, and personalized insights. Designed for people living with Mast Cell Activation Syndrome, it provides clarity around reactions, histamine triggers, and symptom cycles, helping you understand what causes flare-ups and how to prevent them. With precise tools for daily tracking, it transforms complex data into actionable health insights. Track and Understand Your Reactions - Quick symptom tracking - Record hives, itching, flushing, headaches, GI distress, or breathing issues in seconds to capture your full experience. - Food and supplement logs - Track meals, ingredients, and supplements to uncover patterns that cause histamine intolerance or trigger mast cell reactions. - Trigger identification - Log environmental, emotional, and seasonal factors to discover what contributes to your flare-ups. - Advanced analytics - View charts and correlations linking food, stress, sleep, and reactions to pinpoint your top triggers and patterns over time. - Medication tracking - Log antihistamines, mast cell stabilizers, or EpiPen use to monitor effectiveness and consistency. - Daily health journal - Combine symptom notes, mood, and activity levels for a complete picture of your condition each day. - Secure, exportable reports - Generate PDF or CSV summaries to share with allergists, immunologists, or healthcare providers for data-driven care. - Encrypted storage - Protect sensitive health data with strong encryption and optional Face ID or Touch ID authentication. Built for Daily Use - Simple, user-friendly design - Quickly record symptoms and insights without extra effort. - Apple Health integration - Sync metrics like heart rate, sleep, and activity to understand how physical health impacts mast cell responses. - Personalized reminders - Stay on track with alerts for medications, hydration, meals, or journaling. - Goal tracking - Set goals like reducing flare frequency or improving sleep quality and visualize progress through trend charts. - Correlation analysis - Identify which foods, times, or environments consistently cause flare-ups or relief. - Offline and cloud backup - Log entries anytime with automatic syncing when reconnected. - Regular updates - Access new tools and refinements designed to make symptom tracking effortless and accurate. Go Beyond Reaction Tracking - Custom MCAS tracker plan - Follow guided steps to monitor symptoms, medications, and triggers across days or weeks. - Comprehensive health record - Track everything from diet, supplements, sleep, and bowel patterns to stress and emotional states in one connected system. - Educational insights - Learn about mast cell activation, low-histamine diets, and lifestyle adjustments that support stability. - Lab and test logging - Record lab results and notes from medical appointments to maintain a complete personal health record. - Activity and wellness tracking - Track rest, exercise, and stress to balance recovery and prevent overexertion. Start Managing MCAS with Confidence Setup is fast - start logging symptoms, tracking reactions, and uncovering your personal triggers in minutes. Choose a flexible subscription plan and manage it directly through the Apple Store. Every feature in this tracker is built to help you identify patterns, reduce uncertainty, and feel more in control of your health. Transform data into understanding and find the balance your body needs. Start tracking today to uncover your triggers and take the next step toward stability and better quality of life. Any insights provided by this MCAS Tracker do not constitute medical advice. The app is designed for tracking purposes only and is not intended to diagnose, treat, cure, or prevent any disease or condition. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

My Tummi

Easily track your meals and symptoms to identify personal food triggers and understand their impact on your gut health. Gain insights into your diet's effects on your body and manage conditions like IBS.

Highlights
  • Log meals and symptoms
  • Identify food triggers
  • Track gut health journey
  • Diet and body insights
  • Manage IBS and intolerances
Features
Read full description

Find out which foods are behind your bloating, gas, reflux, stomach pain, or other symptoms. Free, with no subscription. SNAP YOUR PLATE Take a photo, type a sentence, or scan a barcode. My Tummi figures out what's in it, including restaurant foods. SEE YOUR TRIGGERS My Tummi ranks your likely triggers and shows the proof: how often symptoms followed, how soon, and how you felt without them. CATCH UP IN ONE MESSAGE Forgot to log? Describe your whole day and My Tummi sorts it into meals and symptoms. CONFIRM WITH AN EXPERIMENT Cut a suspect out for 7 days, bring it back, and see how you react. KNOW BEFORE YOU EAT Scan any product to check it for your known triggers. Stop guessing. Start understanding your gut. My Tummi is for educational purposes only and is not a substitute for professional medical advice. Talk to your doctor before making significant changes to your diet.

Screenshots

MCAS Tracker4 screens
My Tummi4 screens

Verdict

The call

The clearest difference is rating: My Tummi at 5.0 against MCAS Tracker's 4.4. My Tummi also leads on in-app purchases (none vs 16) and update cadence (every 3 weeks vs every 6 months). On price, ratings volume, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MCAS Tracker sells 16 in-app purchases, starting at $4.95 per month. My Tummi asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

My Tummi holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 21 and 8 respectively. Written reviews point the same way: 75% of MCAS Tracker's written reviews are positive against 100% of My Tummi's.

UpkeepUpdate frequency

MCAS Tracker ships an update every 6 months, My Tummi every 3 weeks. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
MCAS Tracker versus My Tummi: the parameters behind the verdict, then further details
ParameterMCAS TrackerMy Tummi
PriceFreeFree
Rating4.4 (21 ratings)5.0 (8 ratings) — better
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings21 — better8
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.515.1 — better
Further details — not scored
Size238 MB63 MB
Age rating4+17+
DeveloperDigital TherapeuticsArman Ghazi

Customer experience

MCAS Tracker

All ratings18 ratings
Positive83.3%
Neutral11.1%
Negative5.6%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

My Tummi

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

16 purchases

MCAS Tracker

Subscriptions13
  • flex pass$4.951 Month
  • easy pass$7.997 Days
  • flex pass$12.991 Month
Show 10 more
  • carey ai max$19.991 Month
  • yearly access$19.991 Year
  • smart pass$19.991 Year
  • carey ai ultra$29.991 Month
  • plus$29.991 Year
  • limited discount$34.991 Year
  • Premium Yearly$34.991 Year
  • yearly access3 Days trial$39.991 Year
  • Extended Trial3 Days trial$39.991 Year
  • full access7 Days trial$49.991 Year
One-time3
  • store credit$1.99
  • carey ai credits$8.99
  • lifetime upgrade$119.99
None

My Tummi

No in-app purchases

Questions

Is MCAS Tracker free?
MCAS Tracker is free to download, with in-app purchases available.
Is My Tummi free?
My Tummi is free to download, with no in-app purchases.
Which has better reviews, MCAS Tracker or My Tummi?
My Tummi is rated higher. MCAS Tracker averages 4.4 out of 5 from 21 ratings, while My Tummi averages 5.0 from 8 ratings.
Do MCAS Tracker or My Tummi have ads?
Neither MCAS Tracker nor My Tummi shows ads.
Which is updated more often, MCAS Tracker or My Tummi?
MCAS Tracker ships an update every 6 months, and My Tummi every 3 weeks. Most recently, MCAS Tracker was updated on October 24, 2026 and My Tummi on October 31, 2026.

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