MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
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.
Maxima - Maxima is a fairly complete computer algebra system written in Lisp with an emphasis on symbolic computation.
JASP - JASP, a low fat alternative to SPSS, a delicious alternative to R.
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.
RStudio - RStudio™ is a new integrated development environment (IDE) for R.