Download of Joinpoint 5.0.2 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free program is an intellectual property of Statistical Research and Applications Branch, National Cancer Institute.
We recommend checking the downloaded files with any free antivirus. Joinpoint.exe or joinpt.exe are the common file names to indicate this program's installer. The most popular versions among the program users are 4.3, 4.1 and 3.4. The program lies within Education Tools, more precisely Science Tools.
From the developer:
Joinpoint is a statistical software for the analysis of trends using joinpoint models. Cancer trends reported in NCI publications are calculated using the Joinpoint Regression Program to analyze rates calculated by the SEER*StatExternal Web Site Policy software. Methods & Software for Population-based Cancer Statistics shows the relationship of the Joinpoint Regression Program to SEER*Stat and other statistical methods and tools.
You may want to check out more software, such as Wintree, World Geography Tutor or Solmetric SunEye, which might be similar to Joinpoint.