I can't beleve that this malware is still available on MacUpdate, it goes hand in hand with MacKeeper... . Never ever install & pay for this crap, it won't boost you Mac at all, on the contrary, your Mac will run slower and slower each time you run this crap. The only true and clean speed up tool is Onyx, which is also totally free to use. Same here, all 5 star reviews are 100% fake. My last advice:
NEVER EVER INSTALL & USE THIS CRAP, IT'S 100% MALWARE !!!