DAS Calculator

by Greg Fiumara · Medical · Free

On the App Store since April 2010 · Data updated 2026-10-24

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

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Rating on App Store: 5.00; 1 ratings
Last updated: September 19, 2019

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Version: 1.13.3
Launched: April 2010

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Price: Free
App size: 1.15 MB
Content rating: Everyone

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About the app and developer

About DAS Calculator

DAS Calculator is a medical app developed by Greg Fiumara.

User Ratings

DAS Calculator is rated 5.00 out of 5 stars. The rating is based on one rating ratings.

App Information

DAS Calculator is freely available from the App Store. The app size is 1.15 MB. The latest version available is 1.13.3. The last update was on September 19, 2019.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since April 2010.

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Store listing

By Greg Fiumara, from the App Store

Screenshots by Greg Fiumara, from the the App Store listing

Description by Greg Fiumara Written by the developer, not by AppBrain. Click to read.

DAS, or "Disease Activity Score," is a measure of the activity of rheumatoid arthritis. Based on the work of the Department of Rheumatology at the University Medical Centre at Nigmegen (Netherlands), a validated tool (formula) was developed to evaluate and track Rheumatoid Arthritis disease activity. By measuring the tender and swollen joint counts (TJC & SJC respectively), CRP (c-reactive protein) and General Health, the DAS 28-4 gives an estimate of disease activity, while the DAS 28-3 uses just the TJC, SJC & CRP. Clinicians, rheumatologists in training, educators and researchers use this tool everyday and now you can have it readily available on your Apple mobile device.

The following formulas are free for you to try.
• DAS28-CRP
• DAS28-CRP (3 Variable)
• DAS/DAS28 Converter
You may use these forever and never be nagged. There are no ads. Enjoy!

If you like what you see, upgrade to the "Pro" version via one-time in-app purchase. This will unlock all remaining formulas, including:
• DAS28
• DAS28 (3 Variable)
• DAS-CRP
• DAS-CRP (3 Variable)
• Original DAS
• Original DAS (3 Variable)
• CDAI
• SDAI
• Cumulative and Weighed RAPID3®

Official page on the App Store

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