JASP - JASP, a low fat alternative to SPSS, a delicious alternative to R.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Statista - The Statistics Portal for Market Data, Market Research and Market Studies
C++ - Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation
RStudio - RStudio™ is a new integrated development environment (IDE) for R.
D (Programming Language) - D is a language with C-like syntax and static typing.