App Detail » DAS Calculator

What's New

Support for iOS 13 dark mode.

App Description

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®

App Changes

• June 24, 2011 New version 1.6.0
• October 29, 2011 New version 1.6.5
• January 27, 2012 New version 1.7.0
• October 17, 2012 New version 1.8.0
• September 16, 2013 New version 1.9.0
• November 28, 2013 New version 1.10
• December 02, 2013 New version 1.10.1
• September 19, 2014 New version 1.11
• November 12, 2014 New version 1.11.1
• August 25, 2015 New version 1.12
• September 16, 2015 New version 1.13
• June 13, 2019 New version 1.13.2
• September 24, 2019 New version 1.13.3