R is a free software environment for statistical computing and graphics.
It is a GNU project which is similar to the S language and environment which was developed at Bell Laboratories (formerly AT&T, now Lucent Technologies) by John Chambers and colleagues. R can be considered as a different implementation of S. There are some important differences, but much code written for S runs unaltered under R.

R is a whole language with its working bundled application as specially the "de facto" standard for data analysis and data mining. Better suited for advanced users who want all the power in their hands.

Custom point-and-click dialogues even if few come with package. 2d graphical workflow helps organize and explain. Most recommended on Quora after Rstudio.

Full IDE like Rstudio. It has very good dialogues for things like package installer and graphics device. Has more common viz analysis pnc gui.

Nicest interface and Unique varieble manipulation GUI, but rattle seems more effective anyway. Might be great for complete beginners. 3D scatterplot. Not all functions in free trial.

Analysis and viz don't seem to export R code. 40$/m 30d trial. lots of built in scrape scripts. good fast interface. common functions rather than unique. crashes

GUI PnC R code generation but gui is clunky and slow. Online only, only 10 hours free. Bunch of unique and useful graphs though.

Maybe great ggploter but does not output R code unless paid and crashes, though in development.

Imho, best tools for common data analysis workflow.

Deducer is similar to rattle but Java based. May be best GGploter with lots of customizable plotting templates.

Of all R GUIs RC's plugins best for exploring esoteric packages and learning stats. Updated enough to write R markdown code.

Lots planned.

Its lots like ggraptr. Easy ggplotting.

GGploter GUI. ggraptR uses datasets loaded into R