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Question: Article in today's NYTimes recommends a free app, Onyx, for cleaning Macs. Thoughts or experience?

Article in today's NYTimes recommends Onyx, a free cleaning' app. Thoughts or experience with this app?

iMac (21.5-inch Mid 2011), OS X Mountain Lion (10.8.5)

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It's not necessary.

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Nov 16, 2017 11:22 AM in response to Jakaar550 In response to Jakaar550

"Cleaning" is not needed on Macs, and in most cases, not wanted. macOS is very efficient and cleans itself. Most other programs purporting to do this can interfere the the OS's normal operations and can do more harm than good.

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Nov 16, 2017 11:22 AM in response to Jakaar550 In response to Jakaar550

Onyx is nothing more than a GUI front end for built in UNIX commands. IF you know what you're doing, it can be helpful. For the average user, who is not a UNIX guru, you can end up doing more harm than good.

You should not need any 3rd party utilities at all to "clean" or maintain your Mac... That said, as I have already pointed out, Onyx is technically just a GUI that lets you easily access the built in UNIX tools... It is not dangerous in the same way that the scam apps like MacKeeper and CleanMyMac are, but it can still be dangerous.


An electric carving knife can be a fantastic tool when it comes to carving up the holiday turkey. You would not, however, let your 2 year old, who doesn't understand what it can do and how dangerous it can be, take it in hand and start slicing things up...

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Question marked as Helpful

Nov 16, 2017 11:22 AM in response to Jakaar550 In response to Jakaar550

"Cleaning" is not needed on Macs, and in most cases, not wanted. macOS is very efficient and cleans itself. Most other programs purporting to do this can interfere the the OS's normal operations and can do more harm than good.

Nov 16, 2017 11:22 AM

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Nov 16, 2017 11:22 AM in response to Jakaar550 In response to Jakaar550

Onyx is nothing more than a GUI front end for built in UNIX commands. IF you know what you're doing, it can be helpful. For the average user, who is not a UNIX guru, you can end up doing more harm than good.

You should not need any 3rd party utilities at all to "clean" or maintain your Mac... That said, as I have already pointed out, Onyx is technically just a GUI that lets you easily access the built in UNIX tools... It is not dangerous in the same way that the scam apps like MacKeeper and CleanMyMac are, but it can still be dangerous.


An electric carving knife can be a fantastic tool when it comes to carving up the holiday turkey. You would not, however, let your 2 year old, who doesn't understand what it can do and how dangerous it can be, take it in hand and start slicing things up...

Nov 16, 2017 11:22 AM

Reply Helpful (1)
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Question: Article in today's NYTimes recommends a free app, Onyx, for cleaning Macs. Thoughts or experience?