Head to head
| Klarity Disk | LumaDisk | |
|---|---|---|
| Visualization | Treemap | Sunburst |
| Platform | macOS | macOS + Windows |
| Pricing | Paid Paid one-time purchase (around $7 at time of writing) | Paid Paid one-time purchase (around $7 at time of writing) |
| Open source | No | No |
| Native Mac | Yes | No |
Updated September 2026 · Prices change — please verify with the vendor.
Klarity Disk
A private offline analyzer with treemaps and system monitoring.
＋ Klarity Disk: Strengths
- Fully offline analysis with a no-telemetry privacy stance
- Treemap plus icicle views and a system monitor in one app
- One-time price with no subscription
－ Klarity Disk: Weaknesses
- Treemap-first; no sunburst option for radial-map fans
- Smaller vendor with less social proof than category leaders
- Monitoring extras may duplicate tools you already own
Read the review: Klarity Disk → · Klarity Disk See alternatives →
LumaDisk
A light-speed sunburst that turns your filesystem into light.
＋ LumaDisk: Strengths
- Modern sunburst visualization on both Mac and Windows
- Fast scans with a clean, contemporary interface
- Affordable one-time price
－ LumaDisk: Weaknesses
- Cross-platform toolkit feel rather than fully native Mac UI
- Newer app with a shorter track record than incumbents
- Cleanup tooling is lighter than specialist cleaners
Read the review: LumaDisk → · LumaDisk See alternatives →
Verdict: Klarity Disk vs LumaDisk
Choose Klarity Disk if you want treemap visualization on macOS. Choose LumaDisk if you prefer sunburst views at paid pricing on macOS + Windows. 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, Klarity Disk or LumaDisk?
Klarity Disk wins on treemap visualization for macOS; LumaDisk wins on sunburst views for macOS + Windows. On price, Paid (Klarity Disk) vs Paid (LumaDisk). 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 Klarity Disk or LumaDisk wins on price.