Strata
Native macOS app · 14 MB · one‑time purchase
Find the 40 GB
you forgot about.
Strata maps your whole drive in seconds and shows every folder at its real size. Anything you remove goes to the Trash, so a mistake costs one click.
No subscription No account Nothing uploaded Every delete undoable
SELECTED
DerivedData
~/Library/Developer/Xcode/DerivedData
Move to Trash
Real proportions. Click any rectangle to descend into it.
Download
Start with the free tier.
The whole map, the search and the readouts, with no time limit and no account. Paid tiers unlock removing things.
15-day refund, no questions, and it opens on the first try.
What you get
Six tools. One window.
The map
A treemap of any drive or folder. Sizes are what files occupy on disk, so the totals match Finder instead of arguing with it.
Search
By name or extension. final .mp4 finds MP4s with "final" in the
name. Case and accents ignored.
Large files
Everything over a size you pick, biggest first, with a bar on each row so the list reads at a glance.
Uninstaller
Removes an app and the files it left across your Library. Every leftover rated, weak matches left unticked.
Live readouts
Processor, memory, battery and free space. Memory counted the way Activity Monitor counts it.
Undo
Everything goes to the Trash. One click puts it back, from Strata or from Finder.
Strata
Disk map, search and uninstaller for macOS
Why Strata
Built the opposite way to most Mac cleaners.
No invented problems
No "issues found" counter, no red badge, no urgency. Every number on screen is a measurement of a real file, and what goes is your call.
14 MB, not 105
Swift, native, no bundled browser engine. An app that promises to reclaim space should not take a hundred megabytes of it first.
Reversible by default
You see the full list before anything moves, with protected items called out and the reason. Removal means the Trash, so Finder can put it back even if you never open Strata again.
Common questions
Before you download.
Why does it ask for Full Disk Access?
macOS hides Mail, Messages, Safari and other apps' data from any app that has not been granted it. Without the permission the scan still runs, but those folders are invisible and your totals come out short. Nothing is uploaded either way.
Is anything deleted permanently?
No. Everything goes to the Trash, so Finder can put it back even if you never open Strata again. When a disk has no Trash, removal fails and tells you rather than doing something permanent instead.
Is this a subscription?
No. Every tier is a one-time purchase that does not expire. Bug fixes, security fixes and macOS compatibility updates are free forever, whatever you paid.