At a glance
| CleanMyMac | MacBooster | |
|---|---|---|
| Price | $39.95-89.95/year (or $119.95 lifetime) | $39.95-89.95/year, subscription only |
| Made by | MacPaw (est. 2008, Mac-only company) | IObit (est. 2004, Windows-first company) |
| Trust record | Long, largely clean reputation | Flagged by Malwarebytes as a potentially unwanted program |
| Independent press coverage | Generally favourable (Macworld, PCMag) | Notably blunt criticism (Macworld: "no surprise people think it's malware") |
| One-time purchase option | Yes, $119.95 lifetime | No, subscription only |
| What it does | Junk cleanup, malware scan, memory, uninstaller | Junk cleanup, memory, Turbo Boost, uninstaller, privacy cleaner |
Why this pairing gets compared so often
Both apps target the same buyer: someone who wants a single suite to clean, optimise, and maintain their Mac, at a similar price point. Multiple independent sites, including TheSweetBits, Dr.Buho, iMyMac, and PowerMyMac, have published dedicated head-to-head comparisons of this exact pairing, which tells you it's a genuine decision point for buyers, not a comparison manufactured for SEO purposes.
The similarity in price and feature list makes reputation the deciding factor for many buyers, and that's where the two apps diverge sharply.
The trust gap
CleanMyMac, made by MacPaw since 2008, has built a long track record specifically as a Mac-only software company. It's covered favourably by Macworld and other mainstream tech press, and its notarization and signing history has been clean.
MacBooster, made by IObit (also known for Advanced SystemCare and IObit Uninstaller on Windows), carries a different reputation. Malwarebytes classifies it as a potentially unwanted program, and Macworld's own review is unusually blunt, stating "it's no surprise people think it's malware," referring to how aggressively its scan results are presented. Reddit sentiment toward MacBooster is also notably more negative than toward CleanMyMac. Neither company's product is literally malicious, both are signed and notarized, but the trust gap between them is real and documented across multiple independent sources rather than a single opinion.
Where CleanMyMac wins
Reputation. A decade-plus of largely clean coverage against a current PUP classification is a meaningful, current difference, not a historical footnote.
A one-time purchase option. CleanMyMac's $119.95 lifetime tier gives subscription-averse buyers an alternative MacBooster doesn't offer at all.
Mac-specific focus. As a Mac-only company, MacPaw's entire roadmap centres on this one platform.
Where MacBooster could still be considered
Being fair to MacBooster: it is a functional, signed, notarized app that does perform the cleanup jobs it claims to. If you've read the concerns above, understand the upsell tactics to watch for, and still prefer its specific interface or feature set, that's an informed choice you're entitled to make. The honest recommendation, given the reputation gap, is that most buyers comparing these two on trust alone should lean toward CleanMyMac.
Which one should you use?
Given the near-identical pricing and feature overlap, the reputation gap is the deciding factor for most buyers. CleanMyMac's longer, cleaner track record and its one-time purchase option make it the safer default recommendation. For a closer look at MacBooster's safety question specifically, see is MacBooster safe, and for MacBooster's own alternatives by job, MacBooster alternatives.
What to actually check before buying either
Regardless of which way this comparison leans you, a few concrete checks are worth doing before paying for any suite in this category. Run whichever app's free scan first and look closely at what it reports: a scan that flags an implausibly large number of "critical issues" on a Mac you already maintain reasonably is a pattern worth being sceptical of, whichever brand is doing it. Check the current subscription price directly on the developer's own pricing page rather than a third-party listing, since promotional pricing shifts often. And if identity monitoring, VPN, or antivirus matter to you specifically, compare those individual features against dedicated tools in that category (Malwarebytes, ProtonVPN, a standalone password manager) rather than assuming a bundled version is automatically competitive with a specialist.
A smaller, unrelated option worth knowing
We make Shiny, a $4.99 menu-bar app that frees memory, disclosed for transparency. If memory is the only feature either suite would earn its price for, a narrower option is worth considering; Shiny vs CleanMyMac covers that specific comparison.
Why the third-party comparisons matter here specifically
The volume of independent coverage on this exact pairing (TheSweetBits, Dr.Buho, iMyMac, and PowerMyMac all publishing dedicated head-to-heads) is itself informative. It means this isn't a niche question a handful of buyers happen to ask; it's a recurring decision point popular enough that multiple review sites considered it worth a dedicated article rather than folding it into a broader roundup. Reading two or three of those independent write-ups directly, alongside this one, is a reasonable way to triangulate whether the reputation gap described here matches what other testers found when they actually ran both apps side by side on their own Macs.