not checking with the PUBLISHER at http://www.tuneupmymac.com/
Their site is quite clear that it is not freeware (just a "free download" which means you don't have to spend any money until you want to use it) and that it has limited functionality until paid for.
Systweak is a parent of tuneupmymac and does offer support
Like any "optimizer" you, the end user, needs to have some knowledge of what you are allowing the utility to do as there is no way for anyone to write the perfect application that takes into account EVERY POSSIBLE combination of installed applications and utilities as well as customizations.
CNET offers a "free" download called TuneUPMyMac. It claims to have a "5-Star" review from CNET. It is neither free nor legitimate. Once installed, it can only be activated with a credit card. You are unable to quit out of the program, or even force quit. It keeps requiring a credit card. I had to use the Mac Activity Monitor to stop the process. In their activation window they show a phone number that leads to a different company called SysTweak. SysTweak claims to have no knowledge of TuneUpMyMac. (Try calling 800-963-9334 and see what they say.) But that phone number is actually built into software interface!
This reeks of a scam, and I have no idea what I have actually downloaded to my computer, or what it will do. I have attempted to uninstall it by simply dragging it to the trash, but can't seem to locate any files beyond the basic app, and you know there are more.
Help! I am disturbed enough to join CNET and find my way through the labyrinth of barriers just to contact real people with my concern.