Subtract one from the other and the amount of free memory is therefore 0.34GB or 340MB. This looks straightforward and in the left column it says that the physical memory is 4.00GB and the memory used is 3.66GB. This is Yosemite, but macOS Sierra is almost identical Select the memory tab at the top and down at the bottom of the window is a table containing various figures showing how OS X is using the RAM in your Mac. Go to the Applications/Utilities folder and run Activity Monitor. All recent versions of macOS and OS X have used similar memory handling for years and not much has changed.
They are very popular apps, but do you really need a memory cleaner? What does it do?įirst, you need to understand how the Mac handles memory. Go to the Mac App Store, go to Categories, select Utilities and among the free and paid apps are several memory cleaners.
