Which fits your needs?
OmniDiskSweeper: Mac users who prefer a free size-sorted browser to a chart.
Space Lens (CleanMyMac): Existing CleanMyMac users who want visual disk exploration within their suite.
Features, pricing, and workflow
Scroll across to compare
| Feature | OmniDiskSweeper | Space Lens (CleanMyMac) |
|---|---|---|
| Best fit | Mac users who prefer a free size-sorted browser to a chart. | Existing CleanMyMac users who want visual disk exploration within their suite. |
| Visualization | Largest-first column browser | Bubble-map storage explorer |
| Platforms and requirements | macOS | macOS |
| Pricing and editions | Free download from The Omni Group. | Part of CleanMyMac; check current subscription/one-time plans and edition availability. |
| Open source | No | No |
| Native macOS UI | Yes | Yes |
| Cleanup workflow | Open or Trash selected files from the size-sorted browser. | Add selections to the cleanup list, review them, then run the module’s removal action. |
| Reports and portability | The official overview does not document report export. Keep important paths separately before rescanning in NullDisk. | Keep screenshots and paths from Space Lens. The cited manual does not establish report interoperability with NullDisk. |
OmniDiskSweeper: what stands out
A good fit for Mac users who prefer a free size-sorted browser to a chart.
OmniDiskSweeper: strengths
- Largest-first file and folder browsing
- Open items or move them to Trash
- Official downloads include versions for older Macs
Considerations
- Column browsing rather than a graphical disk map
- Check the download requirements for your macOS version
- The cited overview does not document saved reports or duplicate matching
Space Lens (CleanMyMac): what stands out
A good fit for existing CleanMyMac users who want visual disk exploration within their suite.
Space Lens (CleanMyMac): strengths
- Bubble visualization of local and external storage
- Folder-by-folder browsing and a reviewed removal list
- Part of the broader CleanMyMac maintenance suite
Considerations
- A suite module rather than a standalone purchase
- Check module availability in your CleanMyMac edition
- Suite licensing may be more than needed for disk analysis alone
For a useful comparison on your own drive, match the scan root, access permissions, and size mode. Chart style changes how you explore the results; it does not by itself establish measurement accuracy.
Common questions
When should I choose OmniDiskSweeper?
A good fit for Mac users who prefer a free size-sorted browser to a chart. Free download from The Omni Group.
When should I choose Space Lens (CleanMyMac)?
A good fit for existing CleanMyMac users who want visual disk exploration within their suite. Part of CleanMyMac; check current subscription/one-time plans and edition availability.
Will both apps show the same size?
Not necessarily. Match the scan root, permissions, exclusions, and logical/allocated-size mode. Hard links, APFS clones, snapshots, sparse files, and cloud placeholders can change totals. A reported size is not a guaranteed amount recovered after deletion.