With the R Programming Language Compiler app, you can now test and run scripts in R from your phone. The app provides a place to input your code, and the ability to run the code and see your output.

All of R’s programming libraries are free, but Revolution Analytics makes its business from its service packages, which give customers access to the libraries the company develops in-house.

Python these days is a top-two programming language and is even more popular than Java, the widely used software that Oracle gained after its 2008 acquisition of Sun Microsystems.