you dont need to buy any mate ccleaner is free. and it works.
it has built its rep over many years and its a good rep.
iobit on the other hand does the job, but tries to be all things at 1s but fails. its rep has been tarnished in the past as i said when it used another antivirus's definitions without permission from the owner. which made its antivirus competitive until they were caught out. yeah it gets glowing reviews but thats because they buy them.
tuneup utils has some very nice features but really it stopped being decent software about 2010. after that it had a lot of so called features tacked on...
good free software every 1 should have...
ccleaner
auslogics disk defrag, or
defraggler.
avira antivirus, or bitdefender...