Clean, like the gods intended.
A disk cleaner for macOS, named for the Greek goddess of health. It finds what is safe to remove, says plainly what it is not sure about, and always leaves you a way back.
What it does
Smart Scan runs the whole pipeline at once. Everything else is available on its own when you already know what you are looking for.
Aggregate scan across every module with one-click clean.
Clear system, browser and app caches across 19 locations.
Reclaim npm, Docker, Xcode and 20 other dev-tool caches.
Remove apps completely, including hidden leftovers.
Find exact duplicate files with SHA-256 matching.
Spot near-identical photos with on-device Vision.
Evict local iCloud copies — files stay in iCloud.
Big files you haven't opened in months.
Interactive treemap of what's eating your disk.
Securely erase files with multi-pass overwrite.
How it decides
A cleaner is only as good as the things it refuses to do. These are enforced in the code, not in the marketing.
Every finding carries a risk level. Only Safe is ever pre-selected — anything marked Review waits for you to read the path and decide. Whole tools, like Large & Old Files, produce nothing but Review, because those are your own documents rather than regenerable caches.
Files are moved to the Trash, not unlinked. If a clean was wrong, the files are still there. The one exception is the File Shredder, which is quarantined at the bottom of the sidebar and says plainly that its work cannot be undone.
Every clean offers a single Undo for 30 seconds that puts each file back where it came from. It refuses to overwrite anything that has reappeared at the original path in the meantime.
A zero the app prints looks exactly like a zero it measured, so it never prints one it did not. A scan that has not counted yet says so in words. A folder macOS refused to open is reported as unreadable — never as empty.
Sizes are the bytes a clean would actually free — allocated, not logical — so a sparse file is not advertised as tens of gigabytes it never occupied. A duplicate group of N files frees N−1 copies, because one always stays.
Anything you dismiss is suppressed by path across every future scan, not just until the next one.
Privacy
Scanning, hashing and photo matching all happen on device. Hygieia makes network calls for exactly two things: verifying a Pro licence, and — only if you opt in during onboarding — sending crash reports with file paths and names scrubbed out.
No file contents, file names or scan results are ever transmitted.
Nothing is sold or shared. Read the full privacy policy.
Free and Pro
Caches and Developer are free and unlimited. Smart Scan is free for three runs a month. The six review-and-reclaim tools and the File Shredder are Pro, along with the alternative accent colours.
Prices are shown at checkout, in your own currency, before anything is charged. This page does not quote a figure it cannot read from the payment page — the same rule the app follows.
Under the hood
Availability
Hygieia is still in development, so there is no download here. When there is a build worth installing, this is where it will appear.