How do I clear System Data on a Mac?

Open System Settings › General › Storage and follow its recommendations, like emptying the Trash. Then clear the caches that page doesn't list. Free Up Space shows app caches, Xcode build files and npm and Gradle caches, each with its size. It won't remove everything macOS counts as System Data, only the items on its list.

Is CleanMyMac a one-time purchase?

Mostly no. MacPaw sells CleanMyMac as a subscription, from $3.33 a month on its website, and $39.99 a year or $9.99 a month on the Mac App Store. The App Store page also lists a CleanMyMac X one-time purchase at $89.99. MrFixable costs $19.99 once, with a 14-day free trial.

Is it safe to clear the cache on a Mac?

Yes, for the caches apps keep in your Library folder. They're temporary files that apps make again when they need them. Free Up Space skips macOS's own caches and the caches of apps that are open, and checks again just before cleaning, so an app you opened since is left alone.

Does MrFixable scan for malware?

No. MrFixable has no malware scanner. CleanMyMac includes one, powered by Moonlock according to its App Store page. MrFixable's App Uninstaller and Free Up Space only remove what you pick: apps with their leftovers, and caches, build files, old Downloads and the Trash.

Alternatives

CleanMyMac alternative for Mac

CleanMyMac is MacPaw's all-in-one Mac cleaner, sold as a subscription from $3.33 a month on its site. MrFixable covers two of its jobs: App Uninstaller removes apps with their leftovers, and Free Up Space clears app caches, Xcode build files, old Downloads and the Trash. Both come with MrFixable's other fixes for $19.99 once.

Try MrFixable free for 14 daysBuy for $19.99 Lifetime license

By Mohammed Chaara. Updated October 21, 2026. Facts about CleanMyMac come from its own website or App Store page, listed at the end.

What CleanMyMac is

CleanMyMac, from MacPaw, bundles many tools in one app: cleanup of system junk such as caches, broken downloads, logs and old email attachments (more than 20 kinds in all), a malware scan, performance tools for background apps and launch items, an uninstaller that clears leftover data, a software updater, a finder for duplicates, similar photos and large files, Space Lens, an interactive map of your drive, and cloud storage cleanup. Its website says plans start at $3.33 a month and offers a 7-day free trial. On the Mac App Store it costs $39.99 a year or $9.99 a month, and a CleanMyMac X one-time purchase is listed at $89.99. It needs macOS 11 or later and is notarized by Apple.

CleanMyMac vs MrFixable

	CleanMyMac	MrFixable
Price	Subscription from $3.33 a month (website); $39.99 a year or $9.99 a month on the Mac App Store	$19.99 once (Lifetime license) for all 68 fixes
Free trial	7 days	14 days
Uninstalling apps	Removes apps with their leftover data	App Uninstaller lists each leftover in ~/Library with its size, and moves everything to the Trash
Cleaning	System junk, caches, broken downloads, logs, email attachments and more, over 20 kinds	App caches, Xcode build files, old iPhone and Watch debug files, npm and Gradle caches, iOS simulators, Downloads older than 30 days, the Trash
Malware scan	Yes	No
Disk map, duplicates and cloud	Space Lens, duplicate and similar photos, large files, cloud storage cleanup	No
Login and background items	Performance tools for background apps and launch items	The separate Startup Items fix
macOS	macOS 11 or later	macOS 14.2 Sonoma or later
Where to get it	MacPaw's website or the Mac App Store	mrfixable.com

Where each one is better

CleanMyMac is better for

It cleans far more kinds of files, including logs, broken downloads and old email attachments.
It scans for malware.
It has Space Lens to map your drive, plus duplicate photo, large file and cloud storage cleanup.
It can update your other apps.
It's on the Mac App Store and runs on macOS 11 or later.

MrFixable is better for

It's $19.99 once, with no subscription, and that includes all 68 MrFixable fixes.
Free Up Space shows exactly what it will remove and the size of each item. Only the safe things, like app caches and Xcode build files, start ticked.
macOS's own caches and the caches of apps that are open are skipped, and the list is checked again just before cleaning.
App Uninstaller moves apps and their leftovers to the Trash, so you can put them back until you empty it.
Nothing runs in the background: both are pages you open when you need them.

Choose CleanMyMac if

People who want one app for cleanup, malware scanning, app updates and finding duplicates, and don't mind a subscription.

Choose MrFixable if

People who mainly want to remove apps cleanly and clear the big caches now and then, and would rather pay once and get MrFixable's other fixes too.

Switching from CleanMyMac

In MrFixable, open Free Up Space, check the list and click Free Up Space. It shows how much you freed. Then use App Uninstaller for the next app you remove. To remove CleanMyMac itself, drop it on App Uninstaller, untick anything you're unsure about and click Move to Trash. If you subscribed through the Mac App Store, cancel the subscription in your App Store account settings.

Questions

How do I clear System Data on a Mac?
Open System Settings › General › Storage and follow its recommendations, like emptying the Trash. Then clear the caches that page doesn't list. Free Up Space shows app caches, Xcode build files and npm and Gradle caches, each with its size. It won't remove everything macOS counts as System Data, only the items on its list.
Is CleanMyMac a one-time purchase?
Mostly no. MacPaw sells CleanMyMac as a subscription, from $3.33 a month on its website, and $39.99 a year or $9.99 a month on the Mac App Store. The App Store page also lists a CleanMyMac X one-time purchase at $89.99. MrFixable costs $19.99 once, with a 14-day free trial.
Is it safe to clear the cache on a Mac?
Yes, for the caches apps keep in your Library folder. They're temporary files that apps make again when they need them. Free Up Space skips macOS's own caches and the caches of apps that are open, and checks again just before cleaning, so an app you opened since is left alone.
Does MrFixable scan for malware?
No. MrFixable has no malware scanner. CleanMyMac includes one, powered by Moonlock according to its App Store page. MrFixable's App Uninstaller and Free Up Space only remove what you pick: apps with their leftovers, and caches, build files, old Downloads and the Trash.