Which fits your needs?
Delve: Apple Silicon users on macOS 26+ who want two maps and staged cleanup.
LumaDisk: Mac/Windows users wanting maps, duplicates, and build-cache discovery.
Features, pricing, and workflow
Scroll across to compare
| Feature | Delve | LumaDisk |
|---|---|---|
| Best fit | Apple Silicon users on macOS 26+ who want two maps and staged cleanup. | Mac/Windows users wanting maps, duplicates, and build-cache discovery. |
| Visualization | Treemap, sunburst, and file list | Sunburst, treemap, duplicate and unused-file lists |
| Platforms and requirements | macOS 26+, Apple Silicon | macOS (Apple Silicon), Windows |
| Pricing and editions | Vendor lists $4.99 once after a 14-day trial. | 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 | Stage items in the Collector, then send the reviewed batch to Trash. | Queue selected items for removal; review the current app’s confirmation and recovery options. |
| Reports and portability | The developer documents exporting maps as posters with Command-Shift-E. Keep that image as a reference; it is not a scan file that NullDisk can import. | The cited page does not establish scan-report export. Preserve paths and selections before starting a fresh scan in NullDisk. |
Delve: what stands out
A good fit for Apple Silicon users on macOS 26+ who want two maps and staged cleanup.
Delve: strengths
- Treemap, sunburst, and file list
- Logical and on-disk measurement with filtering
- Quick Look, collector-to-Trash, and map image export
Considerations
- Requires macOS 26 or later
- Apple Silicon only in the current requirements
- A map export is a visual record, not a file backup
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 Delve?
A good fit for Apple Silicon users on macOS 26+ who want two maps and staged cleanup. Vendor lists $4.99 once after a 14-day trial.
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.