Which fits your needs?
Disk Graph: People who want saved storage history or a companion on iPhone/iPad.
Klarity Disk: Mac users who prefer rectangular views and age-based browsing.
Features, pricing, and workflow
Scroll across to compare
| Feature | Disk Graph | Klarity Disk |
|---|---|---|
| Best fit | People who want saved storage history or a companion on iPhone/iPad. | Mac users who prefer rectangular views and age-based browsing. |
| Visualization | Radial pie chart, treemap, and snapshot sequences | Treemap, icicle view, and Large Files list |
| Platforms and requirements | macOS, iOS, iPadOS | macOS |
| Pricing and editions | Commercial app; check current developer and App Store purchase options. | Vendor lists $6.99 once through the Mac App Store. |
| Open source | No | No |
| Native macOS UI | Yes | Yes |
| Cleanup workflow | Preview, reveal, or move selected items to the bin. | Moves items to Trash; folders of 1 GB or more require slide confirmation. |
| 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. | Report export is not established by the cited overview. Preserve paths or screenshots if you need a record outside the app. |
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
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
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 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.
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.