Feature comparison

Nektony Disk Space Analyzer Pro vs Space Radar

The paid App Store analyzer with collections, Quick Look, and file actions. An open-source project for disk and memory visualization. See how their platforms, views, and cleanup workflows fit the way you work.

Sunburst / MixedPaid / Open source

Which fits your needs?

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

Space Radar: Developers exploring alternative visualizations and an inspectable codebase.

Features, pricing, and workflow

Scroll across to compare

FeatureNektony Disk Space Analyzer ProSpace Radar
Best fitPeople who prefer an upfront App Store purchase with visual analysis and collections.Developers exploring alternative visualizations and an inspectable codebase.
VisualizationSunburst, file directories, and largest-items listSunburst, treemap, and flamegraph
Platforms and requirementsmacOSmacOS, Windows, Linux (check current packages)
Pricing and editionsUS Mac App Store lists $19.99 upfront; check your region’s current listing.Free under the MIT license; check repository build/release instructions.
Open sourceNoYes
Native macOS UIYesCross-platform interface
Cleanup workflowCollect selected files and folders, then move or remove them; check the current removal dialogue.The project documents context-menu actions to locate, open, and delete files or directories; confirm recovery behavior in the selected build.
Reports and portabilityThe App Store description does not establish scan-report export. Preserve paths and collection decisions before a fresh NullDisk scan.Consult the exact build’s save/export controls. Keep any generated data and images; NullDisk does not document importing Space Radar sessions.

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 →

Space Radar: what stands out

A good fit for developers exploring alternative visualizations and an inspectable codebase.

Space Radar: strengths

  • Sunburst, treemap, and flamegraph visualizations
  • MIT-licensed source for inspection and modification
  • Disk and memory visualization in one project

Considerations

  • Packaging and dependencies vary across repository versions
  • Check the current release for your OS and CPU
  • Do not infer cleanup or report formats from the chart selection

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 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.

When should I choose Space Radar?

A good fit for developers exploring alternative visualizations and an inspectable codebase. Free under the MIT license; check repository build/release instructions.

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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