I'd just like to add to the confusion that I've used MacKeeper for a couple of years on five computers without experiencing any problems at all.
I think most of us would agree that if it does what it promises, its a nice piece of software, with lots of utilities in one place. That's how its been to me/us/our Macs.
If I had read this thread before I decided to purchase the first license, I certainly would have skipped it. Obviously there are other free utilities out there that together (probably - one rarely KNOWS) could do much of the same job. But here everything is in one place (though I don't use all of them).
I believe, that with the tone in these threads its harder for someone with a pleasant story to step forward, than those with negative ones. Maybe even you who read this think I am rather silly believing in this absolutely-no-good-piece-of-****-software. Honestly I believe there are more people with good experiences than this thread indicates.
The interesting question then is why some can have terrible time-consuming experiences while others (like me) only have positives.
And: if there is some other (presumably safer) all-in-one alternative out there.
For the record: - I do not work for Zeobit, I only have a customer relationship to them - English is not my native language - and I probably won't participate in this discussion, if not someone can enlighten us on those two final questions. I've just tried to share some thoughts and experiences.
Good luck to everyone - with or without Mackeeper.
Kjetil/ Norway