Sigfit 1.2 for Mac can be downloaded from our website for free. This Mac download was checked by our antivirus and was rated as malware free. The most popular versions of the application are 1.2 and 1.1. This application's bundle is identified as net.eircom.Sigfit. This Mac application was originally produced by J.P.G. Malthouse. You can launch this program on Mac OS X 10.6.6 or later. The application lies within Education Tools, more precisely Science.
From the developer:
This program fits data to the equations:-
kobs = k/(1+[H]/Ka)
kobs = k/(1+Ka/[H]
When "Fit" is selected a linear reciprocal plot is used to make the initial estimates of kobs and the pKa. These values of kobs and pKa are then used as the initial estimates to fit the experimental data using an iterative, non linear least-squares regression program.
You may want to check out more software for Mac, such as Datawrite, which might be similar to Sigfit.