Feature comparison

Disk Graph vs Nektony Disk Space Analyzer Pro

Pie charts, treemaps, and portable snapshots for tracking storage changes. The paid App Store analyzer with collections, Quick Look, and file actions. See how their platforms, views, and cleanup workflows fit the way you work.

Mixed / SunburstPaid / Paid

Which fits your needs?

Disk Graph: People who want saved storage history or a companion on iPhone/iPad.

Nektony Disk Space Analyzer Pro: People who prefer an upfront App Store purchase with visual analysis and collections.

Features, pricing, and workflow

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FeatureDisk GraphNektony Disk Space Analyzer Pro
Best fitPeople who want saved storage history or a companion on iPhone/iPad.People who prefer an upfront App Store purchase with visual analysis and collections.
VisualizationRadial pie chart, treemap, and snapshot sequencesSunburst, file directories, and largest-items list
Platforms and requirementsmacOS, iOS, iPadOSmacOS
Pricing and editionsCommercial app; check current developer and App Store purchase options.US Mac App Store lists $19.99 upfront; check your region’s current listing.
Open sourceNoNo
Native macOS UIYesYes
Cleanup workflowPreview, reveal, or move selected items to the bin.Collect selected files and folders, then move or remove them; check the current removal dialogue.
Reports and portabilityExport 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 App Store description does not establish scan-report export. Preserve paths and collection decisions before a fresh NullDisk scan.

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

Full product guide → · Alternatives →

Nektony Disk Space Analyzer Pro: what stands out

A good fit for people who prefer an upfront App Store purchase with visual analysis and collections.

Nektony Disk Space Analyzer Pro: strengths

  • Sunburst, largest-items list, and Quick Look
  • Collect items for moving or removing
  • Scans external storage and accessible cloud folders

Considerations

  • Paid edition distinct from the free-download listing
  • Access depends on macOS permissions and chosen scan locations
  • A cloud-folder scan is not proof of direct provider-account access

Full product guide → · Alternatives →

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 Nektony Disk Space Analyzer Pro?

A good fit for people who prefer an upfront App Store purchase with visual analysis and collections. US Mac App Store lists $19.99 upfront; check your region’s current listing.

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.

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