[wingerlang]

It cleans it in terms of identifying large files, duplicate files/images, shows you caches for apps, uninstaller, which apps and files are old and never/rarely used. And so on. It's more of a convenience tool than anything. Don't recall other features.

I think there is a certain type of company that go for fairly generic(named) software with a lot of SEO and marketing to be able to earn a lot of money. I guess there is a venn diagram of malware creators where this applies too but I don't think they are.

They are also the developers behind SetApp. I mean, that's a pretty mainstream/famous app(store?) so they collaborate directly with loads of developers/companies to distribute their apps in SetApp. If that counts for something.

[nth_order]

Agreed, their marketing can really sketch one out but CleanMyMac X is tremendously useful. I use almost every function it has once it a while. The app updater for example, it not only updates Sparkle apps but also lists outdated Mac App Store apps. The MAS itself fails to list those updates for some reason most of the time in its "Updates" pane.