AdrianH, that is the same link that dranreb posted.
@ dranreb, welcome to the Forum..
...........you have been linked to a mirror download site which in itself is legitimate.
As to the cost element ...........well, Malwarebytes is a shareware product, meaning that you can download it and use it on free terms.......unless you want the full functionality in which case you must upgrade to the "full" product at the cost as stated.
The lack of functionality in the free version means........no automatic updates
........no flash scans
........no resident protection
So, for a manual, on demand scanner only simply download/use the program free.......or if you want the full thing, pay the cost as stated.
Neither Malwarebytes nor the mirrors are trying to con you, it's a question of the end user understanding what is meant by "shareware", ie a program which is time limited or, as in this case, function limited unless and until paid for.