I am very disappointed with this new version. back to the old version so much better than this

If you see patients with Rheumatoid Arthritis and want to compare how they are doing, this is a great tool! It allows for measurement of several different variables in different combinations which allow calculation of the DAS Score. The DAS Score is a standard measurement of Rheumatoid Arthritis Disease Activity. This tool calculates the DAS Score quickly and efficiently and is well designed to be used in real-world settings while seeing patients as well as in clinical research settings. I highly recommend this to anyone who takes care of patients with Rheumatoid Arthritis.

Most common das calculators ( like the esr based) are locked and the apps promted to get the pro ( pay per view) apps. Considering the formulas are not complex, it's not a good deal at all.