Purify OSX is a weak contender not because of its functions, but because it is a lot of work to set up and unstable in operation. Worse is the support which is too often a flat statement to the user that no one else is having the problem (this reply crops up somewhat often, all the way back to the company's older product support threads). When you press for a solution you discover that 'tech support' is one guy who does not seem to have much experience troubleshooting so he passes the buck. Also, the company charged me twice and refused to refund the second saying I must have ordered twice. The fact that I was out of the office at the second order's time stamp and the fact that the supposedly automated system sent me the same program key each time disproves this, but the company wanter another $29 more than a happy customer. When confronted with these documents the man behind the company had no answer so he just became personally abusive with the crudest of language, an experience I have never had in more than 20 years buying from soft/hardware for dozens of systems. After a lot of time spent, unfortunately the opinion here is avoid this company unless you are totally independent in troubleshooting.