Why not add R

Answer 1

there are so many programming languages. you can't teach/learn all. you'll find very popular and widely spread languages here, but by far not all. not even all the popular ones.
maybe they'll add some more in the future. you just have to be patient. if you want to, you can send feedback to SoloLearn via the feedback function in the menu or via email [e-mail]

Answer 2

It might be too specific, perhaps. Not many people would want to learn it maybe. Or maybe simply it would require too much money to prepare a course in R than it's worth here in Sololearn?

Answer 3

In my opinion it is not popular language.

Answer 4

I wished to see R being learnt in Sololearn Way but that's highly impossible because if we see it is too specific language so that might not be helpful for most of us.