I see that C1 and LR learn from eachother; they copy each others tools...
I'm not sure how correct that is, tools with the same or similar names don't neccessarily do the same things.
For example the new HDR tools don't work the same as the LR tools of the same name,
http://alexonraw.com/capture-one-20/ you will need to scroll down to see the comparsion.
Comparsions of other tools, over the years (I don't have any links anymore) also show differences, even in things as fundamental as the exposure slider.
They obviously do learn from each other, but not as much as the similarity of tool names might suggest.
Cheers,
Graham