CleanMyMac question - how good is it?

I've been told by a friend from Ukraine that the current CleanMyMac software is excellent.


Do experienced folk here agree?


It seems like good value for money!

iMac (2017 – 2020)

Posted on Jun 10, 2025 03:43 PM

Reply
12 replies

Jun 11, 2025 02:42 PM in response to Brainsdead2

Brainsdead2 wrote:

Curious what your take is on whether LLMs could become reliable with proper citation frameworks (e.g. ones that integrate real-time sources)?


Among other papers on the topic: https://machinelearning.apple.com/research/illusion-of-thinking


As for add-on cleaning apps, I generally don’t recommend those. macOS itself does well, and if that isn’t sufficient, then a backup, reset, and migration resolves most. And you get a backup.


Among other issues reported, add-on cleaners have historically tried to free space, which then led macOS to regenerate the caches that had been using that space. Or have caused corruptions, overhead., or cache thrashing.


Somewhat counterintuitively, free storage space and free memory can be an indication of waste and inefficiency, too.


Jun 11, 2025 04:05 PM in response to MrHoffman

MrHoffman wrote:

Somewhat counterintuitively, free storage space and free memory can be an indication of waste and inefficiency, too.


You can see this in Activity Monitor.



The system isn't doing much at the moment – and it's easy to see that it has more than enough RAM. Memory Pressure is Green, and Swap Used is 0. Only 17.76 GB of the 32.00 GB is Used in the sense that the Mac can't throw the contents away.


macOS has put nearly all of the other 14.24 GB to use holding Cached Files. Shouldn't this RAM be "cleaned"?


Not exactly. If the system needs the data in that RAM, before it needs RAM, it can avoid a slow trip to a drive to get it. Even the internal SSD is slower than RAM. If the system needs the RAM before it needs the data, it can simply dump the data (since it's just a cached copy of data that exists on a drive) and allocate the RAM.

Jun 11, 2025 12:57 AM in response to Brainsdead2

ChatGPT has now told me:-


There is no known issue with Safari or macOS that alters thread numbers or the main structure of web links (such as the thread number in an Apple Discussions URL). Thread numbers in URLs like CleanMyMac question - how good is it? - Apple Community are part of the website’s permanent structure and are not changed by your browser or operating system.


However, there are some related points to keep in mind:

  • URL Parameters Added by Websites: Websites, including Apple’s forums, often add extra query parameters (like ?cid=em-com-watches_email_thread-view_the_full_discussion-en-us-11282023) for tracking, analytics, or to indicate the source of a click. This is normal and is done by the website or email system, not by Safari or macOS.
  • Safari or macOS Bugs Affecting Tabs: There are known bugs where Safari tabs may lose their content or URL, or where pages may not load as expected
  • . However, these issues do not change the thread number or the core URL structure. Instead, they may cause tabs to go blank or lose their displayed address temporarily.
  • Link Behavior in Emails and Notifications: If you click a link from an email or notification, the link may include extra parameters that do not reflect the actual content of the thread. This is not a bug—it is standard web practice for tracking and is determined by the sender of the link.


Summary:

Safari and macOS do not alter thread numbers or the main part of web links. Any extra information after the thread number is added by the website or email system, not by your computer or browser

. There are bugs that can affect how tabs display content or URLs, but these do not change the underlying thread number or link structure.


=


That makes sense. Do others reading here agree?


Thanks for your views.


Jun 11, 2025 12:22 PM in response to MrHoffman

Thanks for the reply! You’re right that LLMs are fundamentally statistical in nature - they predict words based on probability, not understanding. But I think it’s also worth acknowledging that they’re increasingly able to perform tasks that resemble reasoning, summarizing, and even basic analysis.


While they aren’t reference sources and shouldn't be treated as such blindly, they can be useful tools - like very capable assistants who need fact-checking. It seems to me that the usefulness depends heavily on how they’re applied and understood.


Curious what your take is on whether LLMs could become reliable with proper citation frameworks (e.g. ones that integrate real-time sources)?


Thanks.

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