Which fits your needs?
DissectMac: People who want free inspection and optional paid app/leftover cleanup.
LumaDisk: Mac/Windows users wanting maps, duplicates, and build-cache discovery.
Features, pricing, and workflow
Scroll across to compare
| Feature | DissectMac | LumaDisk |
|---|---|---|
| Best fit | People who want free inspection and optional paid app/leftover cleanup. | Mac/Windows users wanting maps, duplicates, and build-cache discovery. |
| Visualization | Treemap and search | Sunburst, treemap, duplicate and unused-file lists |
| Platforms and requirements | macOS (Intel and Apple Silicon builds) | macOS (Apple Silicon), Windows |
| Pricing and editions | Map, search, and monitor are free; Pro is listed at $12.99 once plus tax. | 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 | Pro moves selected files and app leftovers to Trash after review. | Queue selected items for removal; review the current app’s confirmation and recovery options. |
| Reports and portability | The overview does not establish scan-report export. Preserve any app-removal decisions and rescan the same folders in NullDisk. | The cited page does not establish scan-report export. Preserve paths and selections before starting a fresh scan in NullDisk. |
DissectMac: what stands out
A good fit for people who want free inspection and optional paid app/leftover cleanup.
DissectMac: strengths
- Free map, file search, and live monitor
- Filters for developer files and large storage categories
- Pro uninstaller and app-leftover cleanup
Considerations
- In-app clearing and uninstallation require Pro
- Treemap is the documented graphical view
- Confirm suspected leftovers belong to apps you no longer need
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 DissectMac?
A good fit for people who want free inspection and optional paid app/leftover cleanup. Map, search, and monitor are free; Pro is listed at $12.99 once plus tax.
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.