Make the Mac you haveenough.
Every number comes with a plain sentence.
Storage, memory, battery, temperature, startup items and 26 system checks. Every figure read from your own Mac.
One app for your whole Mac.
Free up storage, see what is using your memory, and find out why your Mac slows down.
Awake all night
Everything is charged
Google Chrome is holding the memory this Mac is short of
2 you never open
Strong where you are
A few things need you
26 GB cleared since you installed it
3 are behind
macOS Tahoe 26.6.2
Everything macOS knows and won’t show you.
26 checks, read from your own Mac and written in plain words: how worn the battery is, how hot it ran, what starts itself at login, whether the malware definitions are current. Then the repairs, if it found any worth doing.
macOS knows things it never shows you
Twenty-six readings your Mac keeps to itself — how worn the battery is, how hot it ran, what starts itself at login.
A Checkup changes nothing.
It reads. It doesn’t touch anything.
A Checkup changes nothing on your Mac. It reports, and every figure is one you can go and verify somewhere else.
The numbers with nowhere to see them
Your processor’s temperature has no screen anywhere in macOS. Nor does your XProtect version. Your battery’s cycle count is four clicks deep in System Information. All three are here.
One password, not six
The repairs that need an administrator are gathered into one prompt, or none once Plumby’s helper is installed. Nothing to copy and paste, no Terminal.
Or just ask it
On a Mac with Apple Intelligence, ask why it’s slow or what’s filling the disk. Question and answer both stay on the machine.
Everything your Mac kept without telling you.
Caches, logs, crash reports, old device backups, installers you already ran. Plumby names each one in a sentence, then hands you the list.
Your Mac makes files it never cleans up
Your apps keep copies, updates and leftovers you were never told about.
Looking never removes anything.
A sentence, not a folder name
Each row says what the thing is, what happens if it goes, how much it gives back, and how soon it comes back. If we can’t explain a row in one plain sentence, it doesn’t ship.
Two lanes, and it tells you which
“Gone for good. Your Mac rebuilds this,” or “Moved to the Trash. Undo anytime.” Anything that might be a file of yours takes the second one, always.
Your files start unticked
The Mac’s own clutter arrives ticked, because that’s what you opened this for. Backups, installers and big untouched files are listed first, under your own heading, boxes empty.
It says what grows back
Some caches return the next time you open the app, and Plumby says so before you clean, not after. Purgeable space is reported and never counted in a total.
Everything else, one menu away.
Small jobs that usually mean a support thread and a trip through System Settings. Each one would be its own app somewhere else.
Unstick things.
Flush the DNS cache when a page loads for everyone but you. See what’s holding the drive that won’t eject, then free it.
Apps, removed completely.
Drag-to-Trash leaves the caches, preferences and helpers behind. Plumby lists them by path, then takes them with the app.
Fans & power.
Set fans to Auto, Cool, or Max, flip macOS Energy Mode, and read battery health down to the cycle count.
Meetings & focus.
One tap before you present: desktop icons hidden, mic muted, clipboard cleared, and back the same way.
Startup, trimmed.
Everything that opens itself at login, including the helpers. Unused ones are flagged.
Devices & drives.
Battery levels for every paired Bluetooth device. Eject a stuck drive, and see what was holding it.
“A complete 180 from what I expected. They’ve put a lot of TLC (tender, love and care) into this app, and it shows.”
“Good app. I love the clean UI/UX and the lack of nagging popups.”
How Plumby compares.
The difference is where the number comes from, and what the app can touch without asking you first.
| PlumbyMeasured at removal | CleanMyMacThe category default | DaisyDiskThe disk visualiser | |
|---|---|---|---|
| Freed-space number | PlumbyMeasured at removal | CleanMyMacEstimated total | DaisyDiskYou read the sizes yourself |
| Who decides what goes | PlumbyYou do, item by item | CleanMyMacOne-click sweep option | DaisyDiskYou do, manually |
| Repairs when something stops working | PlumbyDocumented macOS repairs, one tap | CleanMyMacA maintenance module | DaisyDiskNot its job |
| Live readings, and something to do about them | PlumbyIn the app and the menu bar | CleanMyMacSeparate menu app | DaisyDiskNo |
| Where cleared files go | PlumbyTwo lanes, and each row says which | CleanMyMacVaries | DaisyDiskThe Trash |
| Pricing | Plumby$19/yr or $59 once | CleanMyMacSubscription | DaisyDiskOne-time |
CleanMyMac and DaisyDisk are good apps, and this stays general on purpose: a spec sheet changes every release. It’s just where Plumby differs.
Why Plumby?
Anything that might be yours is listed first, with the box empty, and only ever moves to the Trash.
Every cleanup is an opt-in checklist: you approve exactly what goes.
An app isn’t “quit” until Plumby has checked that it actually closed.
“Gone for good. Your Mac rebuilds this,” or “Moved to the Trash. Undo anytime.” Every row wears one.
A full app with a proper window, plus a menu-bar readout. Switch on menu-bar-only and the Dock icon goes.
One approval at setup. No password prompts after.
Developer ID-signed and notarized by Apple, so macOS checks it before it ever opens.
Refundable either way, no reason needed. Ask and it’s done.
No analytics, no telemetry. Your files, processes, and network data stay on the machine.
Every figure is read from the system, never modelled. Nothing is a guess dressed up as a number.
Buy it like a tool, not a service.
Pay yearly, or pay once and get every version we ship. Either way the app is yours, and it keeps working even if you stop.
Free to download.
Install Plumby and see your own numbers: what is filling your disk, what is using your memory, what is inside “System Data”. Buy when you want it cleared.
No account, and nothing expires. 14 days to change your mind.
Annual
A year of updates, auto-renewing. Cancel any time and the app keeps running; only the updates pause.
Buy Annual- The app works forever, even if you never renew
- All features from day one
- Use it on 2 Macs
- Native macOS app · Apple silicon & Intel
- 14 days to change your mind
- No account required
Annual renews automatically and you can cancel anytime; your installed app keeps working, only updates pause. Lifetime includes every version we ever ship. Either plan is refundable for 14 days, no reason needed.
Frequently asked questions.
The ones that come up most, answered straight. If yours isn’t here, the guides below probably cover it.
No. It won’t purge RAM or guess at numbers. It shows the evidence, then checks that every fix worked.
Latest guides.
Short, practical reads on what Plumby watches: storage, memory pressure, login items, and the processes behind a high CPU reading. All free, no email required.