Which fits your needs?
Klarity Disk: Mac users who prefer rectangular views and age-based browsing.
LumaDisk: Mac/Windows users wanting maps, duplicates, and build-cache discovery.
Features, pricing, and workflow
Scroll across to compare
| Feature | Klarity Disk | LumaDisk |
|---|---|---|
| Best fit | Mac users who prefer rectangular views and age-based browsing. | Mac/Windows users wanting maps, duplicates, and build-cache discovery. |
| Visualization | Treemap, icicle view, and Large Files list | Sunburst, treemap, duplicate and unused-file lists |
| Platforms and requirements | macOS | macOS (Apple Silicon), Windows |
| Pricing and editions | Vendor lists $6.99 once through the Mac App Store. | Seven-day full trial; scanning stays free. Vendor lists $6.89 once for the remaining features. |
| Open source | No | No |
| Native macOS UI | Yes | Cross-platform interface |
| Cleanup workflow | Moves items to Trash; folders of 1 GB or more require slide confirmation. | Queue selected items for removal; review the current app’s confirmation and recovery options. |
| Reports and portability | Report export is not established by the cited overview. Preserve paths or screenshots if you need a record outside the app. | The cited page does not establish scan-report export. Preserve paths and selections before starting a fresh scan in NullDisk. |
Klarity Disk: what stands out
A good fit for Mac users who prefer rectangular views and age-based browsing.
Klarity Disk: strengths
- Treemap and icicle layouts with age-based colors
- Large Files list and hidden Library visibility
- Trash-only removal with extra confirmation for large folders
Considerations
- No sunburst in the documented view selection
- Age indicates modification history, not whether a file is unnecessary
- System-folder guards intentionally limit removal
LumaDisk: what stands out
A good fit for Mac/Windows users wanting maps, duplicates, and build-cache discovery.
LumaDisk: strengths
- Sunburst and treemap with live scan updates
- Build-cache radar, duplicate groups, and unused-file lists
- OneDrive/Dropbox connections; iCloud through its local folder
Considerations
- Verify Mac CPU support; current site highlights Apple Silicon
- Features beyond scanning require an unlock after trial
- Google Drive is listed as coming soon
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 Klarity Disk?
A good fit for Mac users who prefer rectangular views and age-based browsing. Vendor lists $6.99 once through the Mac App Store.
When should I choose LumaDisk?
A good fit for Mac/Windows users wanting maps, duplicates, and build-cache discovery. Seven-day full trial; scanning stays free. Vendor lists $6.89 once for the remaining features.
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.