If you are trying to clean up a Mac and only want to pay for one app, the choice usually comes down to CleanMyMac, the long-established all-in-one from MacPaw, and Crumb, a newer, transparency-first disk cleaner. They overlap, but they are built on different bets: one is a broad subscription suite, the other is a focused one-time purchase. Here is an honest, side-by-side look so you can pick the one that actually fits how you work.
The short answer
Buy CleanMyMac if you want a single subscription that also does malware scanning and system maintenance, and you do not mind paying every year. Buy Crumb if you mainly want to see exactly what is eating your disk, reclaim it safely, and pay once instead of renewing forever. Both are legitimate, notarized Mac apps; the deciding factor is usually subscription vs. one-time and broad suite vs. transparent disk focus.
What each app is actually for
CleanMyMac (made by MacPaw, also bundled in their Setapp subscription) is a broad maintenance suite. Alongside junk and cache cleanup it includes a malware scanner, maintenance scripts, an app uninstaller, a large-and-old-files finder, and performance tools. If you want one app that touches many parts of macOS housekeeping, that breadth is the appeal.
Crumb is narrower on purpose. It runs a read-only audit of your whole Mac, breaks down where the space actually went (including the "System Data" macOS never itemizes for you), and shows a clear, reviewable plan before anything is removed. It also handles app uninstalls, duplicates, and an "Ask Crumb" plain-English helper. The bet is that most people do not need a dozen tools; they need to trust the one that deletes their files.
Price: one-time vs. subscription (the real difference)
This is where the two genuinely diverge. CleanMyMac is subscription-first. A single-Mac annual plan has historically run around $29.95 for the first (promotional) year, then renews closer to $39.95/year; the two-Mac tier is roughly $44.95 renewing near $59.95, and there is a five-Mac family tier. A one-time license has existed at around $89.95, though it is not the default path and sales move that number around. Through Setapp it is about $9.99/month bundled with other apps.
Crumb is one-time-first. There is a free version and a one-time Lifetime license at $29 — a one-time purchase with no subscription. The practical gap shows up over time: on a single-Mac annual plan, CleanMyMac is roughly $190 over five years; Crumb's Lifetime is $29 total for the same span. If you keep a cleaner installed for years — most people do — a one-time purchase is simply less money.
Safety and transparency
Both apps are code-signed and notarized by Apple, so neither is a security risk to install. The difference is in how they treat deletion. Crumb's core promise is that the audit is read-only and every removal is shown as a reviewable plan first, with an explanation of whether a given file will regenerate — so a cleanup is never a blind "trust the button." CleanMyMac also lets you review items, but its Smart Care flow is designed to clean quickly with fewer stops, and it has historically been criticized for prompts that nudge you toward more cleaning than you asked for. If you want to see and approve every decision, Crumb leans harder in that direction.
Where CleanMyMac is the better pick
To be fair, CleanMyMac does things Crumb does not. If you specifically want built-in malware/adware scanning, macOS maintenance scripts, or you already pay for Setapp and want to use apps you are effectively already renting, CleanMyMac is the more complete suite. Crumb does not try to be an antivirus or a tune-up toolbox; it stays focused on disk space and transparent cleanup.
Which should you buy?
- Choose Crumb if your real problem is "my disk is full and I do not know what is safe to delete," you want to approve every removal, and you would rather pay once than renew a subscription.
- Choose CleanMyMac if you want an all-in-one that also scans for malware and runs maintenance, and an annual subscription does not bother you.
The honest test: if you would use the malware and maintenance features, CleanMyMac's breadth can justify the recurring cost. If you would mostly use it to find and clear disk space — which is what most people actually reach for — Crumb does that transparently for a one-time price. You can try Crumb's free version first and only upgrade if it earns it.