It's not like they're entirely separate and unrelated things. Anaconda is a company that created a program called Conda which can connect to various "channels" to get packages, and initially the main one was the Anaconda channel. Conda was open source but initially its development was all done by Anaconda. Gradually the Conda program was separated out and development was taken over by a community team. Also there is now conda-forge which is a community-run channel that you can use instead of the Anaconda one. And then there is also Mamba which is basically a faster implementation of Conda. That's why there's the awkward naming. It's not like there are competing groups with similar names, it's just things that started off being named similarly because they were built at one company, but gradually the pieces got separated off and moved to community maintenance.