Head to head
| Delve | Nektony Disk Space Analyzer | |
|---|---|---|
| Visualization | Mixed | Sunburst |
| Platform | macOS | macOS |
| Pricing | Paid Paid one-time purchase (around $5 at time of writing) | Freemium Free scan; full features via yearly subscription or lifetime unlock |
| Open source | No | No |
| Native Mac | Yes | Yes |
Updated September 2026 · Prices change — please verify with the vendor.
Delve
An honest APFS-aware treemap plus sunburst with collector cleanup.
＋ Delve: Strengths
- Both treemap and sunburst views with APFS-aware measurement
- Collector tray stages deletions before they happen
- Honest marketing about what can and can't be reclaimed
－ Delve: Weaknesses
- Newer entrant — fewer reviews and community resources
- macOS only, no Windows or mobile companion
- Smaller feature surface than all-in-one suites
Read the review: Delve → · Delve See alternatives →
Nektony Disk Space Analyzer
A fast sunburst analyzer that finds your largest space hogs.
＋ Nektony Disk Space Analyzer: Strengths
- Sunburst view in the same visual family as DaisyDisk and NullDisk
- Free scan before paying anything
- Nektony ships a whole Mac-utility ecosystem around it
－ Nektony Disk Space Analyzer: Weaknesses
- Subscription tier for full features where rivals charge once
- Interface carries the house style of a utility bundle
- Largest-file focus can miss distributed cruft
Read the review: Nektony Disk Space Analyzer → · Nektony Disk Space Analyzer See alternatives →
Verdict: Delve vs Nektony Disk Space Analyzer
Choose Delve if you want mixed visualization on macOS. Choose Nektony Disk Space Analyzer if you prefer sunburst views at freemium 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, Delve or Nektony Disk Space Analyzer?
Delve wins on mixed visualization for macOS; Nektony Disk Space Analyzer wins on sunburst views for macOS. On price, Paid (Delve) vs Freemium (Nektony Disk Space Analyzer). 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 Delve or Nektony Disk Space Analyzer wins on price.