Head to head
| GrandPerspective | SimplyDiskSweeper | |
|---|---|---|
| Visualization | Treemap | List |
| Platform | macOS | macOS |
| Pricing | Open source Free and open source (GPL); small App Store fee for the packaged build | Free Free with paid App Store options at time of writing |
| Open source | Yes | No |
| Native Mac | Yes | Yes |
Updated September 2026 · Prices change — please verify with the vendor.
GrandPerspective
The tiny open-source treemap that shows your biggest files instantly.
＋ GrandPerspective: Strengths
- Free and open source with a tiny footprint
- Treemap rectangles make the single biggest space hog obvious
- Fast rescans and a loyal power-user community
－ GrandPerspective: Weaknesses
- Treemap UI is utilitarian — no sunburst, no guided cleanup
- No collector tray or duplicate finder; deletion is file-by-file
- Development pace is slow compared with commercial rivals
Read the review: GrandPerspective → · GrandPerspective See alternatives →
SimplyDiskSweeper
A minimal sorted-list cleaner for quick disk sweeps.
＋ SimplyDiskSweeper: Strengths
- Dead-simple sorted lists — no learning curve
- Fast for routine sweeps of Downloads and caches
- Lightweight indie app
－ SimplyDiskSweeper: Weaknesses
- No visual map for understanding usage at a glance
- Minimal safety rails and no staged collector
- Not suited to deep forensic cleanups
Read the review: SimplyDiskSweeper → · SimplyDiskSweeper See alternatives →
Verdict: GrandPerspective vs SimplyDiskSweeper
Choose GrandPerspective if you want treemap visualization with open-source transparency on macOS. Choose SimplyDiskSweeper 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, GrandPerspective or SimplyDiskSweeper?
GrandPerspective wins on treemap visualization for macOS; SimplyDiskSweeper wins on list views for macOS. On price, Open source (GrandPerspective) vs Free (SimplyDiskSweeper). 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 GrandPerspective or SimplyDiskSweeper wins on price.