My preference is this one where I write: Memory Cleaner X.
While I do not wish to undermine, challenge, or argue with the insights and conclusions made by experts with more advanced technical knowledge in this area that I currently have or desire to acquire, I do want to offer my own insights and suggestions, which are based, not on theory, but on using a few of these memory cleaner utilities over the past three months or so.
I have read some of comments contributed here and elsewhere arguing that, as a class of software, memory cleaners are either useless under Mac OS X (because the Mac OS supposedly has a built-in memory recoup feature that make such memory cleaners redundant) or that paid-for memory cleaners are nothing but scams to take advantage of ignorance among Mac users, who are unaware that there is a Terminal command which can apparently accomplish the job. Let me try to offer a non-technical recommendation for installing a memory cleaner utility to your daily arsenal in general, and this application, in particular.
