Is CleanMyMac 3 good?

Discussion in 'Mac Basics and Help' started by hajime, Sep 25, 2016.

  1. hajime macrumors 601

    Jul 23, 2007
    Hello, I read some articles saying that this app could make the Mac run faster and delete useless files. It is good in practice? I worry that it might delete important user and system files.
  2. Admiral macrumors regular


    Mar 14, 2015
    Given the way it is marketed, I have to imagine it's not good.
  3. keysofanxiety macrumors G3


    Nov 23, 2011
    No. 100% no. Don't download it. Just avoid any clean/speed up applications. Same advice applies for Windows.

    OS X looks after itself. If you feel your Mac's running slowly, these apps won't help. Post here and we'll run some diagnostics.
  4. old-wiz macrumors G3

    Mar 26, 2008
    West Suburban Boston Ma
    There have been reports on the forum where CleanMyMac deleted too much and the system would not boot at all.
  5. jonwatso macrumors newbie


    Mar 22, 2016
    I've been using clean my mac for a while now. Started using it since version 1, and have purchased the subsequent versions since. Never had any issues with it. Do you absolutely need it? No of course not but I do find it pretty useful. It's very handy for some things like resetting applications (my favourite feature for troubleshooting), removing languages you'll never use. The mac is pretty good at looking after itself so isn't needed, but I do enjoy using the app for some things.
  6. Tarek macrumors 6502

    Jun 25, 2009
    Liverpool, UK
    The only similar application I use on my Mac and Windows computers is CCleaner because it's light and not filled with malware like CleanMyMac is, and I am telling you that from experience rather than speculation.
  7. jonwatso, Sep 26, 2016
    Last edited: Sep 26, 2016

    jonwatso macrumors newbie


    Mar 22, 2016
    Clean my Mac doesn't have malware in it. You may be getting it confused with Mac keeper which is advertised every where and is a very horrible piece of software. Clean my Mac is good, and works a treat. Been using it for years now. Can confirm it doesn't have malware.
  8. KALLT macrumors 601

    Sep 23, 2008
    CleanMyMac still encourages users to ‘optimise’ their Mac performance by clearing out Spotlight indexes, databases and old logs and it still removes important system caches, which is an absolute no-go. It pretends to know better than Apple and third-party developers by pulling the rug under their feet. The fact that the program has a long list of workarounds for programs that don’t quite work with their magic sauce is proof enough. Just reading their website gives me a stress line. Stay away from this, you don’t need it.
  9. maflynn Moderator


    Staff Member

    May 3, 2009
    Not a good app, and does more harm then good. I don't see any redeeming features for this app
  10. hajime thread starter macrumors 601

    Jul 23, 2007
  11. SandyBear macrumors newbie


    Sep 26, 2016
    I found CMM useful and did speed up my ageing iMac. Maybe at a cost, as mentioned, but with nothing I noticed. Still, not really required for newer versions of OS X.
    Now my favorite free macOS software utilities are:
    Ccleaner - light and quick, consolidated access to OS X native functions.
    Etrecheck - quickly check for old stuff slowing things down and bottlenecks.
    Adware removal by malwarebytes- have been good earlier, now purchased by new company, not sure how good it is now...
  12. tjwilliams25 macrumors 6502

    Aug 10, 2014
    If you use macOS Sierra, most of the "beneficial" features of these programs have been added, including cleaning out old caches and keeping track of abandoned files. As others have stated, these types of programs do these harmless things, but they also clean out caches and databases that are needed for your computer to function quickly and correctly.
  13. Floris macrumors 68020


    Sep 7, 2007
    Not really to my surprise, but on the Mac you really do not have to do a lot of maintenance.
    Almost all of these cleaning up, speeding up, anti virus, this and that apps .. They're all just really bad, cause trouble, harder to uninstall than usual, require root password for some reason .. and change ownership a lot more than any other company.

    Dodgy stuff, they're on the same list as MacKeeper etc. I consider them to be the virusses to the mac and never recommend any of these to mac users.

    Just empty your trash, uninstall some apps you don't use anymore. And go through your data manually like your docs, your pics, your vids, your download folder. And clean it up manually a bit once in a while.

    Getting rid of some log files will give you a couple megs, ont 500 ..
    Cleaning up some cache files just means (in my book) that they will be rebuild next time and that's just performance hit again. You can just leave it alone and let the apps deal with them.
  14. hajime thread starter macrumors 601

    Jul 23, 2007
    If I upgrade to macOS Sierra, will I certainly gain an improvement in system performance?
  15. Toutou macrumors 6502a


    Jan 6, 2015
    Prague, Czech Republic
    No, not really, I'd say. Try telling us what kind of issues are you experiencing.
  16. stankira macrumors newbie

    Apr 18, 2018
    Not really, but I think it tricks you into believing that you've cleaned your Mac :)
  17. satcomer macrumors 603


    Feb 19, 2008
    The Finger Lakes Region
    Just get the free YASU! It just used simple check marks to do AppleScipt commands, just reboot after deleting caches!
  18. mathepac macrumors newbie


    Sep 18, 2017
    Kilkenny, Ireland
    It's not free. The last time I checked (today, 1 minute ago) a licenece cost US$7.99
  19. mpainesyd macrumors 6502


    Nov 29, 2008
    Sydney, Australia
    Cocktail has some useful utiliities for maintenance but I rarely use it these days - macOS seems to look after itself.
  20. lisofby macrumors newbie


    Nov 21, 2018
    sw wa
    I want safari off my computer...I downloaded it due to a misinformed lecturer and dont need it anymore anyway since I finished my keeps giving me bong which sucks and bing brings trove which sucks even harder....

Share This Page