Head to head
| OmniDiskSweeper | SpaceLens | |
|---|---|---|
| Visualization | List | Mixed |
| Platform | macOS | macOS |
| Pricing | Free Free freeware from The Omni Group | Paid Available via CleanMyMac subscription or one-time license |
| Open source | No | No |
| Native Mac | Yes | Yes |
Updated September 2026 · Prices change — please verify with the vendor.
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 →
SpaceLens
A bubble-map storage explorer inside the CleanMyMac suite.
＋ SpaceLens: Strengths
- Beautiful bubble-map view distinct from sunbursts and treemaps
- One click from analysis to automated cleanup inside the suite
- Backed by MacPaw's large support and update operation
－ SpaceLens: Weaknesses
- Requires the full CleanMyMac suite — no standalone purchase
- Subscription push where single-purpose rivals charge once
- Suite scope means deeper scans can feel like an upsell path
Read the review: SpaceLens → · SpaceLens See alternatives →
Verdict: OmniDiskSweeper vs SpaceLens
Choose OmniDiskSweeper if you want list visualization on macOS. Choose SpaceLens if you prefer mixed 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, OmniDiskSweeper or SpaceLens?
OmniDiskSweeper wins on list visualization for macOS; SpaceLens wins on mixed views for macOS. On price, Free (OmniDiskSweeper) vs Paid (SpaceLens). 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 OmniDiskSweeper or SpaceLens wins on price.