Head to head
| Delve | OmniDiskSweeper | |
|---|---|---|
| Visualization | Mixed | List |
| Platform | macOS | macOS |
| Pricing | Paid Paid one-time purchase (around $5 at time of writing) | Free Free freeware from The Omni Group |
| 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 →
OmniDiskSweeper
A largest-first column browser for quick, no-frills cleanup.
＋ OmniDiskSweeper: Strengths
- Completely free from a trusted Mac developer
- Largest-first sorting finds big folders with zero learning curve
- Lightweight and fast on any Mac
－ OmniDiskSweeper: Weaknesses
- No visual map at all — pure ranked lists
- Dated interface that hasn't meaningfully evolved in years
- No collector, previews, or safety rails beyond the Trash
Read the review: OmniDiskSweeper → · OmniDiskSweeper See alternatives →
Verdict: Delve vs OmniDiskSweeper
Choose Delve if you want mixed visualization on macOS. Choose OmniDiskSweeper if you prefer list views for free 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 OmniDiskSweeper?
Delve wins on mixed visualization for macOS; OmniDiskSweeper wins on list views for macOS. On price, Paid (Delve) vs Free (OmniDiskSweeper). 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 OmniDiskSweeper wins on price.