01 The short version
OmniDiskSweeper presents files and folders by size in a browsing interface. Delve presents storage as a treemap or sunburst, with file previews and a Collector. Both can help you decide which files you no longer need.
OmniDiskSweeper is free. Delve offers a 14-day free trial, then $4.99 once or free access through referrals. It requires macOS 26 or later on Apple Silicon.
02 Side by side
Delve and OmniDiskSweeper compared| Feature | Delve | OmniDiskSweeper |
|---|
| Price | $4.99 once or free through referrals; 14-day trial | Free |
|---|
| Primary view | Treemap and sunburst | Files and folders sorted by size |
|---|
| Best suited to | Seeing storage patterns across folders | Following folder names and size totals |
|---|
| Cleanup workflow | Gather selected files in the Collector, then move to Trash | Open or Trash files from the list |
|---|
| Compatibility | macOS 26+, Apple Silicon | Check the current download; legacy releases are available |
|---|
The Omni Group’s current product page describes Trash and open actions. Older releases can behave differently, so check the version you install.
03 Where OmniDiskSweeper wins
A list works well when names carry the context: old installers in Downloads, exported videos in a project folder, or archives you have already backed up. Open a large folder, inspect its children, and follow the size totals down to the files.
You may not need a separate utility at all for a single familiar folder. Finder’s list view and size column can help. Our large-file guide starts with the tools already on your Mac.
04 Where Delve wins
A list tells you the order; a treemap tells you the shape. A large folder can contain one enormous file or thousands of smaller ones. A treemap makes that difference visible. A sunburst shows how nested folders contribute to the total. That broader view can help when you do not yet know where to start.
Our recommendation
Choose OmniDiskSweeper for a free list-based workflow. Try Delve if you want a visual overview and a place to gather cleanup candidates before moving them to the Trash. Prefer the view that helps you recognize your own files.
05 A cleanup step both workflows need
Confirm the file’s full location and whether another app depends on it before removal. Use an app’s own storage controls for managed libraries and backups. A large item is a lead to investigate, not a recommendation to delete it.
Common questions
Is OmniDiskSweeper free?
Yes. The Omni Group distributes OmniDiskSweeper as a free Mac utility.
Does OmniDiskSweeper permanently delete files?
The current official product page describes moving files to the Trash. Historical versions may differ, so follow the instructions for the release you use.
Does Delve include a free trial?
Yes. Delve has a 14-day free trial. After that, support our work for $4.99 once or get the app free through referrals. It requires macOS 26 or later and Apple Silicon.
Which app is faster?
We have not published a controlled benchmark comparing these apps. Scan performance depends on the drive, file count, permissions, and other activity on the Mac.
Sources and further reading
Product details checked September 19, 2026. Prices are in USD where shown; storefronts, taxes, and offers may differ. Recommendations reflect the workflows described here, without a comparative performance benchmark.
Continue with two free Mac disk analyzers, a practical cleanup guide.
Make room for what matters.
Explore your storage with Delve. See the largest files, preview what you find, and choose what belongs in the Trash.
14-day free trial · $4.99 once or free by sharing · macOS 26+ · Apple Silicon