I don't think they're associated, but they seem to have a similar function. secushare has a comparison page where they compare their project to others (includin

I don't think they're associated, but they seem to have a similar function. secushare has a comparison page where they compare their project to others (including RetroShare) for various use cases, so you might want to take a look at that. (https://secushare.org/comparison https://secushare.org/comparison)