What are some alternatives?
When comparing SHAZAM (statistical analysis) and PSPP, you can also consider the following products
R Lang - R is a free software environment for statistical computing and graphics.
IBM SPSS Statistics - IBM SPSS Statistics is software that provides detailed analysis of statistical data. The company behind the product practically needs no introduction, as it's been a staple of the technology industry for over 100 years.
RStudio - RStudio™ is a new integrated development environment (IDE) for R.
RKWard - RKWard is an easy to use, transparent frontend to the R programming language, a very powerful, yet...
jamovi - jamovi is a free and open statistical platform which is intuitive to use, and can provide the...
SOFA Statistics - SOFA Statistics Open For All - the user-friendly, open-source statistics, analysis, & reporting software package.