Hi @Bernhard ,
Great! RCode is free and will remain free.
We sell other softwares, that are commercial, like RPGM: RPGM - PGM Solutions .
RCode is also used to develop RPGM applications: this is an additional feature in RCode that we sell with our RPGM software.
But RCode as an R IDE will always remain free.
Cheers,
Nicolas