Head to head

Nektony Disk Space Analyzer Pro vs WhatSize

Two analyzers, one disk. Nektony Disk Space Analyzer Pro brings sunburst views to macOS; WhatSize answers with list views on macOS. Here's the honest head-to-head — and the third option nobody told you about.

Sunburst vs List Paid vs Paid
Contents
  1. Head to head
  2. Nektony Disk Space Analyzer Pro
  3. WhatSize
  4. Verdict
  5. Frequently asked questions

Head to head

Nektony Disk Space Analyzer ProWhatSize
VisualizationSunburstList
PlatformmacOSmacOS
PricingPaid
Paid App Store purchase (around $20 at time of writing)		Paid
Paid one-time license (around $15 at time of writing)
Open sourceNoNo
Native MacYesYes

Updated September 2026 · Prices change — please verify with the vendor.

Nektony Disk Space Analyzer Pro

The Pro App Store scanner for moving or removing bulky content.

＋ Nektony Disk Space Analyzer Pro: Strengths

  • Mac App Store distribution with Apple-handled updates
  • Sunburst plus move/remove actions for bulky content
  • One-time App Store purchase, no subscription

－ Nektony Disk Space Analyzer Pro: Weaknesses

  • App Store sandbox constrains deep scans without manual grants
  • Costs more than several equally capable rivals
  • Pro vs standard edition naming confuses buyers

Read the review: Nektony Disk Space Analyzer Pro → · Nektony Disk Space Analyzer Pro See alternatives →

WhatSize

A fast measuring sorter with column views and cleanup tools.

＋ WhatSize: Strengths

  • Deep measuring with column, outline, and chart views
  • Finds large, duplicate, and orphaned files beyond simple sizes
  • Appeals to power users who live in column browsers

－ WhatSize: Weaknesses

  • Dense, technical UI with a real learning curve
  • Paid license with no free tier for casual use
  • Visualization is secondary to tables and lists

Read the review: WhatSize → · WhatSize See alternatives →

Verdict: Nektony Disk Space Analyzer Pro vs WhatSize

Choose Nektony Disk Space Analyzer Pro if you want sunburst visualization on macOS. Choose WhatSize if you prefer list views at paid pricing on macOS. And if you want a native Mac sunburst with a staged collector and zero telemetry, NullDisk is the third option that beats both on workflow.

Frequently asked questions

Which is better, Nektony Disk Space Analyzer Pro or WhatSize?

Nektony Disk Space Analyzer Pro wins on sunburst visualization for macOS; WhatSize wins on list views for macOS. On price, Paid (Nektony Disk Space Analyzer Pro) vs Paid (WhatSize). The honest answer depends on your OS and whether you prefer maps or lists — read the verdict below.

Is there something better than both?

If you want a native Mac sunburst with allocated-size honesty, a staged removal collector, and zero data collection, NullDisk beats both on workflow — even where Nektony Disk Space Analyzer Pro or WhatSize wins on price.

More comparisons