RAMKeeper
Guides
How macOS actually handles memory
No tips lists, no placebos. Each of these explains a real mechanism, with numbers measured on a real machine and the commands so you can check your own.
"Your system has run out of application memory"
What the macOS out-of-memory dialog actually means, why it fires on Macs with plenty of RAM, and how to find the process responsible instead of force-quitting at random.
Do Mac memory cleaners actually work?
What macOS already does with your RAM, what "free up memory" tools really change, and why 4% free RAM on a 64 GB Mac is a sign of health rather than trouble.
How to monitor RAM usage on a Mac
Activity Monitor, vm_stat and the menu bar — three ways to watch memory on macOS, and what every figure in the Memory tab means.
Is it a memory leak, or just a big app?
A leak has a signature you can measure: growth that survives idling and never comes back down. The test, a script that samples it, and what you can actually do when the leak is in someone else app.
Cached files in Mac memory
Several gigabytes, counted as used, and doing you a favour. What the figure contains, a measured reading, and why emptying it buys you disk reads rather than memory.
CleanMyMac alternatives, by what you actually used it for
CleanMyMac bundles five unrelated jobs. Replacing it starts with deciding which one you needed, because two of them macOS already does and one of them nothing can do.
What is wired memory on a Mac?
The one category in Activity Monitor with no owner and no process to quit. What it contains, why no app accounts for it, and the honest answer to whether you can reduce it.
How much RAM do I need on a Mac?
Three readings, taken over a week on the Mac you already have, answer this better than any recommendation can. The method, and where it points depending on what you find.
Is 8 GB of RAM enough on a Mac?
Both sides of that argument are describing their own workload. How to measure yours in a week, why an 8 GB Mac reports alarming numbers while working fine, and what to do if you already own one.
16 GB vs 24 GB MacBook Air: measure it, do not guess
You cannot add memory to an Apple silicon Mac later, so the decision deserves better than a spec sheet. Three readings you can take on the Mac you already have, and how to read them.
How much memory Mac apps actually use
A measured reading from one Mac with the method attached: what footprint, peak and RSS each say about the same app, why they disagree by more than you would expect, and the commands to take the same reading yourself.
How to uninstall CleanMyMac completely
Dragging it to the Trash leaves the background helper running. How to find every leftover on your own machine, so the method still works whatever version you have.