August 10, 2026
Space opera... with receipts
Hyperspace
The Mac cleanup app saving huge space is sparking price drama and rival comparisons
TLDR: Hyperspace is a Mac app that finds duplicate files and frees storage without visibly removing them. Commenters were split between being impressed by huge space-saving claims and dragging the app over pricing, comparisons to a cheaper rival, and what one user called a bait-and-switch feeling.
Hyperspace sounds almost magical on paper: it scans your Mac folders for files that are exactly the same, then makes them share the same stored data so they take up less room without deleting anything you can see. In plain English, it’s a cleanup tool for duplicate files that promises to free up storage while leaving your files in place. But in the comments, the real action wasn’t the feature list — it was the immediate "wait, how good is this really?" energy.
The biggest flex came from a commenter claiming the app had once saved space in the hundreds of terabytes — a truly absurd brag — before walking it back to a still-eye-popping 3.94TB and linking a Mastodon post. That set the tone: part amazement, part side-eye. Then came the inevitable showdown with a rival, diskDedupe, as multiple users basically asked, "Why this one?" and pointed out the competitor has been around longer and costs less.
And then the mood turned spicy. One commenter accused Hyperspace of a dark pattern, saying it lets people scan for free, shows them all the juicy space they could recover, and only then springs the paid upgrade. Ouch. Others spun off into nerdy daydreams about using the same idea for cloud storage, proving this is the kind of app that inspires equal parts wallet anxiety, storage envy, and "I could script that" swagger.
Key Points
- •Hyperspace finds files with identical contents in one or more folders and reclaims storage without removing the files.
- •The app uses macOS space-saving clones so duplicate files can share a single instance of on-disk data.
- •The documentation defines terms such as scanning, reclamation, identical file group, source file, target file, and package.
- •In each duplicate group, one source file remains unchanged and is read-only for the cloning process, while target files are replaced with clones.
- •Using Hyperspace involves three stages: Scan, Review, and Reclaim, and scans can include multiple selected folders and their subfolders.