Head to head
| Delve | SquirrelDisk | |
|---|---|---|
| Visualization | Mixed | Sunburst |
| Platform | macOS | macOS + Windows + Linux |
| Pricing | Paid Paid one-time purchase (around $5 at time of writing) | Open source Free and open source (AGPL-3.0) |
| Open source | No | Yes |
| Native Mac | Yes | No |
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 →
SquirrelDisk
The easiest open-source sunburst for hunting huge files.
＋ SquirrelDisk: Strengths
- Free and open source on every desktop OS
- Genuinely easy sunburst experience
- No account, no telemetry, no upsell
－ SquirrelDisk: Weaknesses
- Java-based UI rather than native Mac controls
- No collector tray or staged-removal workflow
- Solo-maintainer pace on features and fixes
Read the review: SquirrelDisk → · SquirrelDisk See alternatives →
Verdict: Delve vs SquirrelDisk
Choose Delve if you want mixed visualization on macOS. Choose SquirrelDisk if you prefer sunburst views for free on macOS + Windows + Linux. 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 SquirrelDisk?
Delve wins on mixed visualization for macOS; SquirrelDisk wins on sunburst views for macOS + Windows + Linux. On price, Paid (Delve) vs Open source (SquirrelDisk). 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 SquirrelDisk wins on price.