SURPH 3.2.4 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program's installer is commonly called surphapp.exe. The most popular version of the SURPH is 3.2.
The program lies within Education Tools, more precisely Science Tools. The actual developer of the free software is University of Washington. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software.
From the developer:
SURPH is an analytical tool for estimating survival using release-recapture data as a function of environmental and experimental effects.
These effects may apply to a population (such as ambient temperature) or an individual (such as body length). SURPH provides flexible modeling capability for selecting the most parsimonious models, and diagnostic reports and graphs for analysing data and selected models.
You may want to check out more software, such as MB Free Muhurtha Astrology, CDtool or Travoltage, which might be related to SURPH.