Kitsmith / Compare / OnyX vs AppCleaner

MacOnyX vs AppCleaner

OnyX vs AppCleaner: verdict, pricing, and specs compared, so you can pick the right one for your Mac.

At a glance

OnyX

Free

A free, all-in-one Mac maintenance utility — verify system files, clear caches, uninstall apps, and tweak hidden settings — from French developer Titanium Software, since 2003.

Utilities Screen Homebrew Verified August 30, 2026

AppCleaner

Free

A free, longstanding drag-and-drop app uninstaller from FreeMacSoft — finds and removes the leftover caches and preference files a Trash drag leaves behind.

Utilities Screen Homebrew Verified August 30, 2026

Spec comparison

OnyX

Price
Free
Pricing model
Free
License
Proprietary
Placement
Screen
Channels
Homebrew · Direct
Category
Utilities

AppCleaner

Price
Free
Pricing model
Free
License
Proprietary
Placement
Screen
Channels
Homebrew · Direct
Category
Utilities

The verdict

These cover different scopes, which is why several “best free Mac cleaner” roundups recommend running them together rather than picking one. OnyX is Titanium Software’s all-in-one maintenance suite — verify the startup disk, clear caches, rebuild indexes, tweak hidden Finder/Dock/Safari settings, and more — free since 2003, but version-specific per macOS release and, by its own design, capable of changing things a less technical user shouldn’t touch. AppCleaner does exactly one job, with much less risk attached: drag an app on, and it finds and removes the leftover files a Trash drag leaves behind. Pick OnyX if you want deep, hands-on system maintenance and don’t mind a steeper interface; pick AppCleaner if uninstalling apps cleanly is the only job you need done.

Which one should you pick?

Pick OnyX if…

  • Pick OnyX if you want one utility that also verifies your startup disk, clears caches, and rebuilds indexes — not just uninstalls apps
  • Pick OnyX if you want access to hidden Finder, Dock, and Safari settings without using Terminal
  • Pick OnyX if you’re a comfortable, technical user — reviewers consistently flag it as more powerful, and riskier if misused, than a focused tool
  • Pick OnyX if you want a project with two decades of history from a single French developer, since 2003

Pick AppCleaner if…

  • Pick AppCleaner if uninstalling apps and their leftover files is the only job you want done
  • Pick AppCleaner if you’d rather avoid a tool that can modify hidden system settings
  • Pick AppCleaner if you want the simpler, lower-risk option for a less technical user
  • Pick AppCleaner if you’re happy pairing it with a separate tool, such as OnyX, for deeper maintenance later

OnyX vs AppCleaner — questions people ask

Do I need both OnyX and AppCleaner?

Several “best free Mac cleaner” roundups recommend exactly that combination — AppCleaner for uninstalling apps completely, OnyX for deeper system maintenance — since they cover different jobs rather than competing directly.

Is OnyX safe to use?

It’s a legitimate, longstanding utility (since 2003), but because it can modify hidden system settings and system files, forum discussions caution that it suits technical users more than beginners.

Is AppCleaner free?

Yes — it’s a free direct download from FreeMacSoft with no purchase step.

See OnyX in full ↗ See AppCleaner in full ↗

260 apps, every one checked by hand against the developer's own site or the Mac App Store — prices, requirements, and claims verified at the source.

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