# MCAS & Mastocytosis — Mast Cell Activation Syndrome

> Information and personal experience on Mast Cell Activation Syndrome (MCAS). (iPhone/iPad app by Michael richter.)

- Source: https://appshunter.io/ios/app/mcas-and-mastocytosis/id1550794913 (this page in markdown: same URL + `.md`)
- Developer: [Michael richter](https://appshunter.io/developer/939792183)
- Category: Health & Fitness
- Price: Free
- Rating: 4.82/5 from 34 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 5 MB
- Languages: English, German
- Released: 2021-02-02
- Data updated: 2026-09-08
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mcas-and-mastocytosis/id1550794913/reviews.md

## What is MCAS & Mastocytosis?

IMPORTANT NOTICE: The contents of this app are based purely on personal experience with the systemic mast cell activation syndrome and DO NOT claim to be general, they only serve the purpose of trying to help other potentially affected people!
All information in this app are based on the webpage https://systemisches-mastzellaktivierungssyndrom-mcas.de. There you will find more detailed information as well as links to doctors and institutes that you can consult on the subject of MCAS in order to have your personal diagnosis made.
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THIS APP DOES NOT REPLACE THE VISIT TO A DOCTOR!
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In this app you will find important information about symptoms, diagnostics, therapy. Something about salicylate intolerance, histamine intolerance and recipes you will also find. 

How do I follow a grace diet to empty my histamine barrel? An overview of food groups that should be avoided can be found in the app. Offers of help: What can I do if I become a care case due to the disease, lonely, where can I ask for support, apply for help? 

There is also a contact form for getting in touch and a nutrition diary, which can be used to document the tolerability of food and medication.

From now on, you will always have the most important information about the disease with you and can inform yourself at any time, forward the app to family or friends for better understanding and always be well informed. This app is always being updated and expanded.

## Key features

- MCAS information
- Symptom details
- Diagnostic guidance
- Therapy options
- Salicylate and histamine intolerance
- Recipes
- Support resources
- Nutrition diary

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/mcas-and-mastocytosis/id1550794913/reviews.md

### 1/5 — App fehlerhaft

*2024-08-27, version 1.3.1*

Ich hatte viele Notizen im Ernährungstagebuch gemacht, die dann alle aus unbekannten Gründen verschwanden. App wieder gelöscht und Papier und Bleistift benutzt.

### 5/5 — Very useful, well researched

*2024-01-27*

I hope this app helps people get a diagnosis. The app can’t diagnose anything but talk to your doctors. 

Now that I know what I have I control it entirely through diet and this app has lots of useful information and tools. I have not used it much but it does seem like the most useful and knowledgeable. 

The app states how personal each person’s responses are to every aspect and, that’s not just hedging it’s true.  You have to figure it out yourself there’s no universal key.

### 5/5 — Informativ

*2023-10-02, version 1.2.1*

Ich bin so froh diese App gefunden zu haben. Nun stehe ich nicht mehr alleine dar. Auch wenn mein Arzt mich nicht versteht, ich verstehe nun so vieles mehr.

## Frequently asked questions about MCAS & Mastocytosis

### What is MCAS & Mastocytosis?

MCAS & Mastocytosis is an app that shares personal experiences and information about Mast Cell Activation Syndrome (MCAS), covering symptoms, diagnostics, and therapy. It aims to help individuals affected by the condition.

### Does MCAS & Mastocytosis replace a doctor's visit?

No, MCAS & Mastocytosis explicitly states that it does not replace a visit to a doctor. The app's content is based on personal experience and is intended to supplement, not substitute, professional medical advice.

### What kind of information is available on MCAS & Mastocytosis?

The app provides information on MCAS symptoms, diagnostics, and therapy. It also includes details on salicylate and histamine intolerance, recipes, and resources for seeking help and support.

### Can I track my food intake with MCAS & Mastocytosis?

Yes, MCAS & Mastocytosis includes a nutrition diary feature. This diary can be used to document the tolerability of different foods and medications.

### Is MCAS & Mastocytosis updated regularly?

Yes, the app is continuously being updated and expanded. The latest version is 1.3.2, last updated on May 30, 2025.

### What is the rating for MCAS & Mastocytosis?

MCAS & Mastocytosis has a high user rating of 4.8 stars based on 34 ratings, indicating positive user sentiment.

### What devices is MCAS & Mastocytosis available on?

MCAS & Mastocytosis is available on iPhone, iPad, and iPod. It has an age rating of 4+.

### Does MCAS & Mastocytosis have ads?

No, MCAS & Mastocytosis does not contain advertisements. It is a free app without any in-app purchases or ads.

## Version history (last 5 releases)

### 1.3.2 — 2025-05-30

The petition is back and can be accessed via the link on the relevant page.

### 1.3.1 — 2024-06-15

The nutrition diary can now be shared, e.g. to be printed, saved or sent.

### 1.3.0 — 2024-06-13

The nutrition diary can now be shared, e.g. to be printed, saved or sent.

### 1.2.1 — 2023-07-25

We made some minor corrections and optimizations, and we added translations for the food diary.

### 1.2.0 — 2023-05-11

We have added a small but fine food diary, which you can use to easily and clearly determine when you react to which food and how, and what may not be doing so well for you.
Have fun trying!

## Apps similar to MCAS & Mastocytosis

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [MCAS Insight](https://appshunter.io/ios/app/mcas-insight/id6748612002) | 5.0 (1) | $0.99 | Health & Fitness |
| [POTS Care Package](https://appshunter.io/ios/app/pots-care-package/id1558856374) | 3.0 (4) | Free | Health & Fitness |
| [The Zebra Club](https://appshunter.io/ios/app/the-zebra-club/id1584173915) | 4.8 (178) | Free | Health & Fitness |
| [POTS Strong](https://appshunter.io/ios/app/pots-strong/id1563311817) | 5.0 (6) | Free | Health & Fitness |
| [SALT for POTS](https://appshunter.io/ios/app/salt-for-pots/id1671082112) | 3.6 (22) | Free | Health & Fitness |
| [Healp - Your Health Community](https://appshunter.io/ios/app/healp-your-health-community/id1604142147) | 4.6 (21) | Free | Health & Fitness |

## More apps by Michael richter

- [Random Secret Santa](https://appshunter.io/ios/app/random-secret-santa/id939792184)
- [Match Stats for Blood Bowl](https://appshunter.io/ios/app/match-stats-for-blood-bowl/id942724722)

All apps by Michael richter: https://appshunter.io/developer/939792183

## Related topics

[histamine intolerance](https://appshunter.io/ios/topics/histamine-intolerance) · [low histamine diet](https://appshunter.io/ios/topics/low-histamine-diet)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*