Which fits your needs?
Disk Graph: People who want saved storage history or a companion on iPhone/iPad.
DissectMac: People who want free inspection and optional paid app/leftover cleanup.
Features, pricing, and workflow
Scroll across to compare
| Feature | Disk Graph | DissectMac |
|---|---|---|
| Best fit | People who want saved storage history or a companion on iPhone/iPad. | People who want free inspection and optional paid app/leftover cleanup. |
| Visualization | Radial pie chart, treemap, and snapshot sequences | Treemap and search |
| Platforms and requirements | macOS, iOS, iPadOS | macOS (Intel and Apple Silicon builds) |
| Pricing and editions | Commercial app; check current developer and App Store purchase options. | Map, search, and monitor are free; Pro is listed at $12.99 once plus tax. |
| Open source | No | No |
| Native macOS UI | Yes | Yes |
| Cleanup workflow | Preview, reveal, or move selected items to the bin. | Pro moves selected files and app leftovers to Trash after review. |
| Reports and portability | Export a snapshot and keep it: the developer documents JSON/TSV records that can be viewed in a text editor. NullDisk does not import these snapshots. | The overview does not establish scan-report export. Preserve any app-removal decisions and rescan the same folders in NullDisk. |
Disk Graph: what stands out
A good fit for people who want saved storage history or a companion on iPhone/iPad.
Disk Graph: strengths
- Switch between radial charts and treemaps
- Logical size, allocated size, or file-count modes
- Export snapshots and animate changes across a sequence
Considerations
- Mobile scans cover locations accessible through Files
- Snapshots record inventory, not backed-up file contents
- Historical snapshots need a fresh scan before cleanup
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
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 Disk Graph?
A good fit for people who want saved storage history or a companion on iPhone/iPad. Commercial app; check current developer and App Store purchase options.
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.
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.