As I stated, I had no issues with the apps, and user reviews are generally positive. It is certainly true that whatever cleaning you do will be undone by time as mores apps are opened and closed. Note: Not everyone agrees these apps solve RAM problems. Memory Diag requires OS X 10.9 or later and a 64 bit processor. Memory Diag is free for a limited time, so grab it if you need some RAM optimization. I could not verify this, and every time I checked Memory Diag it was running smoothly and not bogging down my Mac.

There were some complaints from a few users that the app itself was claiming 100% CPU time on their Macs. The graphic thermometer is small, and doesn't draw your attention. The only thing I would change is to have an actual numerical display of RAM usage in the menu bar. Memory Clean works by purging all inactive memory that goes on standby when you close out of a memory intensive program. After I did so, I was rewarded with 3 GB of available memory. Obviously, it was time to click on its menu bar item, click on the Cleanup button inside, and force the Mac OS to give me more memory to play with. The app has nice clear menus, and the developer maintains an FAQ on his website. When the Mac OS completed its task of exporting that web page, Memory Cleaner X reported that only about 30 MB was left. Safari can grab a lot of RAM, along with Photoshop (which I am using almost all day long). It's possible to have so much RAM filled that Memory Diag can't optimize, but it will suggest which apps to close.

Memory Diag tells you what things are draining your computer's memory. I'm often near the limit, which slows up my Mac and forces OS X to use the hard disk as virtual memory. The menu bar icon is dynamic and gives you a quick look at how much utilization your RAM is getting. The app lives on your menu bar, and there are three themes to choose from. Like a lot of memory utilities (including the OS X Activity Monitor), it will analyze your RAM usage, tell you what applications are using the most resources, and offer to clean things up by purging unused processes. Memory Diag is a nice free utility app available on the Mac App Store.

Mac memory cleaner reviews