One-glance verdict
Green means all copies match, orange means there are differences, red means content is missing.
Product
LastCheck — backup copy checker for Mac
Check every copy of a job matches, before you wipe a card or hand off a drive.
Free
C:\DODO_DIGITAL> lastcheck --verify
All copies match
Differences found
Missing content
Before you wipe
LastCheck compares every copy of a job side by side and tells you at a glance whether they all match.
Compares size and file count, not checksums, so it checks hundreds of gigabytes in moments.
What it does
Every drive, side by side
Each drive gets its own column, so you can see every copy of the job at once.
Drill down to the difference
Follow a mismatch down to the exact folder that differs.
Reports on every drive
Write the same CSV, PNG and text report to every drive in one click.
Ignores the noise
Skips .DS_Store and sidecar files, plus ChronoSync and CCC archive folders.
What you get
- Free — no licence, no trial
- Updates itself
System requirements
Mac
Apple Silicon
macOS
macOS 11 or later