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MastCell Tracker for iPhone

The MCAS app,
now on iPhone.

Track Mast Cell Activation Syndrome symptoms, triggers, and biosignals on your iPhone or iPad. Free to download, with over 2,000+ downloads across iPhone and Android.

MastCell Tracker MCAS app on iPhone
2,000+Downloads
FreeNo cost to start
iPhone & iPadSupported devices
Real-timeBiosignal tracking
01What you can do

Everything MastCell Tracker does, on your iPhone.

02iPhone app — FAQ

Is the MastCell Tracker iPhone app free?

Yes. MastCell Tracker is free to download on the App Store for iPhone and iPad, with no cost to start tracking your symptoms and triggers.

Which iPhones and iPads are supported?

MastCell Tracker runs on current iPhone and iPad models on a recent version of iOS or iPadOS. Simply download from the App Store to get started.

Do I need the MCT-1 wearable to use the iPhone app?

No. You can log symptoms and triggers with the app alone. Pairing the MCT-1 biosensor adds continuous, real-time biosignal tracking.

Is my health data private on iOS?

Yes. Your data is encrypted, never sold, and always under your control. See our Privacy Policy for full details.

Get MastCell Tracker on iPhone.

Download free on the App Store and join over 2,000 people tracking their MCAS on iPhone and iPad.

Get it on the App Store All platforms