NullDisk our pick
A native macOS disk-space analyzer with an interactive radial map. Native SwiftUI, allocated-size honesty, staged Trash-based removal, zero data collection.
Top 5 Nektony Disk Space Analyzer Pro alternatives
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SquirrelDisk
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Directe vergelijking: NullDisk vs Nektony Disk Space Analyzer Pro
| NullDisk | Nektony Disk Space Analyzer Pro | |
|---|---|---|
| Visualization | Sunburst radial map | Sunburst |
| Platform | macOS 14+ | macOS |
| Pricing | Paid | Paid |
| Open source | No (offline, zero-data) | No |
| Cleanup flow | Staged collector → Trash | Varies by tool |
Kernfeiten: Nektony Disk Space Analyzer Pro
| Nektony Disk Space Analyzer Pro | |
|---|---|
| Vendor | Nektony LLC |
| Platform | macOS |
| Pricing | Paid — Paid App Store purchase (around $20 at time of writing) |
| Visualization | Sunburst |
| Open source | No |
Stand september 2026 · Prijzen veranderen — controleer bij de aanbieder. Prijs bij publicatie: Paid App Store purchase (around $20 at time of writing).
NullDisk past bij je als …
- Honest one-time purchase instead of subscriptions or gated tiers.
- Fully offline with a published zero-data policy — nothing ever leaves your Mac.
- A staged removal collector: queue suspects, review, then Trash everything together.
Pros & cons
＋ Sterke punten
- Mac App Store distribution with Apple-handled updates
- Sunburst plus move/remove actions for bulky content
- One-time App Store purchase, no subscription
－ Zwaktes
- App Store sandbox constrains deep scans without manual grants
- Costs more than several equally capable rivals
- Pro vs standard edition naming confuses buyers
Veelgestelde vragen
What is the best alternative to Nektony Disk Space Analyzer Pro for Mac?
For most Mac users it's NullDisk: native SwiftUI, a radial sunburst map, a staged removal collector, and zero data collection. Nektony Disk Space Analyzer Pro users who want sunburst views and paid pricing will feel at home within minutes.
Is there a free alternative to Nektony Disk Space Analyzer Pro?
Yes — GrandPerspective and Disk Inventory X are free and open source with genuine treemap analysis. They lack NullDisk's collector workflow and sunburst map, but they find the biggest hogs fast.
How do I switch from Nektony Disk Space Analyzer Pro to NullDisk?
Note the largest folders Nektony Disk Space Analyzer Pro flagged, then run the same scan in NullDisk and rebuild the cleanup in its removal collector. The full walkthrough is on our switching guide.
Kortom
Nektony Disk Space Analyzer Pro is a capable tool for sunburst fans on macOS. But if you want the whole job — see, stage, and safely remove — done natively on a modern Mac, NullDisk is the upgrade. Overstapgids →