Feature comparison

Nektony Disk Space Analyzer vs WhatSize

A sunburst analyzer for large files, folders, and mounted storage. A disk measurement utility with column browsing, filtering, and cleanup tools. See how their platforms, views, and cleanup workflows fit the way you work.

Sunburst / MixedFreemium / Paid

Which fits your needs?

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

WhatSize: Mac users who favor column browsing and integrated duplicate/cleanup tools.

Features, pricing, and workflow

Scroll across to compare

FeatureNektony Disk Space AnalyzerWhatSize
Best fitMac users who want a sunburst and integrated file-management actions.Mac users who favor column browsing and integrated duplicate/cleanup tools.
VisualizationSunburst, directories, and largest-items listSize-sorted columns and measurement views
Platforms and requirementsmacOSmacOS 11+ (current vendor requirements)
Pricing and editionsFree download; verify the selected store edition and its in-app purchase terms.Vendor lists $14.99 and a 30-day trial; upgrades may be priced separately.
Open sourceNoNo
Native macOS UIYesYes
Cleanup workflowManage selected items with copy, move, and removal actions; check edition-specific availability.Review the chosen cleaning or duplicate action before applying it.
Reports and portabilityThe overview does not establish a portable report format. Keep paths and the selected scan scope before comparing results in NullDisk.Preserve any saved measurements or reports supported by your version. The cited overview does not establish an import format shared with NullDisk.

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 →

WhatSize: what stands out

A good fit for Mac users who favor column browsing and integrated duplicate/cleanup tools.

WhatSize: strengths

  • Size-sorted columns and detailed filtering
  • Duplicate-file tools and cleanup categories
  • Updates measurements as the filesystem changes

Considerations

  • Paid license after the trial
  • Cleanup categories still require your judgment
  • Check upgrade terms separately from the initial purchase

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?

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.

When should I choose WhatSize?

A good fit for Mac users who favor column browsing and integrated duplicate/cleanup tools. Vendor lists $14.99 and a 30-day trial; upgrades may be priced separately.

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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