Feature comparison

Disk Graph vs Nektony Disk Space Analyzer

Pie charts, treemaps, and portable snapshots for tracking storage changes. A sunburst analyzer for large files, folders, and mounted storage. See how their platforms, views, and cleanup workflows fit the way you work.

Mixed / SunburstPaid / Freemium

Which fits your needs?

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

Nektony Disk Space Analyzer: Mac users who want a sunburst and integrated file-management actions.

Features, pricing, and workflow

Scroll across to compare

FeatureDisk GraphNektony Disk Space Analyzer
Best fitPeople who want saved storage history or a companion on iPhone/iPad.Mac users who want a sunburst and integrated file-management actions.
VisualizationRadial pie chart, treemap, and snapshot sequencesSunburst, directories, and largest-items list
Platforms and requirementsmacOS, iOS, iPadOSmacOS
Pricing and editionsCommercial app; check current developer and App Store purchase options.Free download; verify the selected store edition and its in-app purchase terms.
Open sourceNoNo
Native macOS UIYesYes
Cleanup workflowPreview, reveal, or move selected items to the bin.Manage selected items with copy, move, and removal actions; check edition-specific availability.
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 overview does not establish a portable report format. Keep paths and the selected scan scope before comparing results 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

Full product guide → · Alternatives →

Nektony Disk Space Analyzer: what stands out

A good fit for Mac users who want a sunburst and integrated file-management actions.

Nektony Disk Space Analyzer: strengths

  • Sunburst and largest-items browsing
  • Copy, move, or remove selected files
  • Supports external volumes and accessible cloud-storage folders

Considerations

  • Standard and Pro have separate store listings
  • Check which actions require a purchase in the selected edition
  • Mounted cloud folders do not necessarily represent an entire provider account

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?

A good fit for Mac users who want a sunburst and integrated file-management actions. Free download; verify the selected store edition and its in-app purchase terms.

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.

More comparisons