Plumby vs CleanMyMac: an honest, side-by-side comparison
Plumby vs CleanMyMac, compared fairly. Both clean a Mac, but they differ on measured vs estimated results, one-click vs review-first, subscription vs one-time, and developer junk. Here's which fits you.
Plumby vs CleanMyMac in one line: both keep a Mac tidy, but CleanMyMac is a polished, subscription-based all-in-one with a one-click sweep, while Plumby measures every result, shows the exact path of everything before it acts, deletes only on your command, and is a one-time purchase. Which is "better" depends entirely on whether you'd rather trust a tool to tidy for you, or approve every change yourself.
Let's compare them honestly, CleanMyMac included on its merits, not as a strawman.
First, the fair part: CleanMyMac isn't the villain
The internet muddies this, so let's be clear. CleanMyMac is a legitimate, Apple-notarized and Developer-ID signed app from MacPaw, on the Mac App Store since 2020. It's polished, and it isn't malware. Millions of people use it happily.
People look at alternatives not because CleanMyMac is unsafe, but because of how one-click cleaners work as a category: the estimated totals, the subscription, and the single button that deletes on your behalf. That's the specific set of trade-offs Plumby was built to avoid.
The comparison
| Plumby | CleanMyMac | |
|---|---|---|
| Freed-space number | Measured at removal | Estimated "GB found" total |
| How it deletes | Review-first, every item | One-click sweep available |
| Developer junk (node_modules, Docker, Xcode) | Found by name | Limited |
| Live vitals & process control | Yes, from the menu bar | Separate menu app |
| What it clears goes to | Trash or delete, your choice | Varies |
| Pricing | Annual or one-time lifetime, no account | Subscription ( |
| Account required | No | Account-based |
| Notarized by Apple | Yes | Yes |
The table is kept general on purpose: a feature-by-feature spec sheet changes with every CleanMyMac release, and picking apart one version would be unfair. The differences that actually persist are the four philosophies below.
1. Measured vs estimated
The clearest difference is the number each one shows you.
CleanMyMac, like most one-click cleaners, presents an estimated total of what it can free, and those totals often include purgeable space that macOS would reclaim on its own anyway. It's not dishonest, but the number is a projection.
Plumby counts the bytes it actually removes, item by item, as each one goes. The figure you see is what really left the disk, nothing projected, nothing padded. This is the "measured, never estimated" rule the whole app is built around.
2. One-click vs review-first
CleanMyMac's convenience is its one-click Smart Care sweep: press a button, and it cleans across categories. That's exactly what some people want.
Plumby deliberately has no whole-machine sweep button. Every cleanup is an opt-in checklist: it shows you each item with its real path (~/Library/Caches, ~/Library/Developer/Xcode/DerivedData, and so on), and nothing is removed until you approve it. The cost of that is a few more seconds; the benefit is that a wrong guess is never made for you. You also choose whether cleared items go to the Trash (recoverable) or are deleted outright.
3. Subscription vs one-time
CleanMyMac (now CleanMyMac 5) sells both ways: an annual subscription at roughly $40/yr, or a one-time license at roughly $120. Plumby sells both ways too, an annual plan or a one-time lifetime license, with no account, and either way the app you installed keeps working even if you never renew.
Which one costs less depends on the plan you choose and on what each is charging the day you buy. Compare the current prices against CleanMyMac's, rather than the numbers in any article, this one included.
4. Developer awareness
This is where the gap is widest. Generic cleaners treat build artifacts as ordinary files. Plumby recognizes the build-up macOS never tidies on its own: node_modules scattered across old projects, the Docker.raw that grows but never shrinks, Xcode DerivedData and simulators, and package-manager caches. If your Mac is a work machine, the best Mac cleaner for developers is the one that knows these by name and never touches your source.
So which should you pick?
- Choose CleanMyMac if you want a polished, hands-off all-in-one that tidies with one click and you don't mind a subscription.
- Choose Plumby if you want to see every number, approve every change, keep developer junk in check, and pay once.
Neither choice is wrong. CleanMyMac is a good app that does what it says. Plumby's claim is narrower and specific: it does the finding and the clearing, measures every result, shows every step, and never asks you to trust a number you can't check. If that's the trade-off you want, that's the whole idea.
