Head to head
| Diskaroo | GrandPerspective | |
|---|---|---|
| Visualization | Treemap | Treemap |
| Platform | macOS + Windows + Linux | macOS |
| Pricing | Freemium Free tier; Pro is a one-time unlock (around $20 at time of writing) | Open source Free and open source (GPL); small App Store fee for the packaged build |
| Open source | No | Yes |
| Native Mac | No | Yes |
Updated September 2026 · Prices change — please verify with the vendor.
Diskaroo
A treemap visualizer with collector tray and smart filters.
＋ Diskaroo: Strengths
- Treemap plus collector tray mirrors the best cleanup flows
- Smart filters and duplicate detection in Pro
- Runs on all three desktop platforms
－ Diskaroo: Weaknesses
- Pro unlock costs more than several native Mac rivals
- Cross-platform UI rather than native SwiftUI feel
- Newer brand with limited independent reviews
Read the review: Diskaroo → · Diskaroo See alternatives →
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 →
Verdict: Diskaroo vs GrandPerspective
Choose Diskaroo if you want treemap visualization on macOS + Windows + Linux. Choose GrandPerspective if you prefer treemap 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, Diskaroo or GrandPerspective?
Diskaroo wins on treemap visualization for macOS + Windows + Linux; GrandPerspective wins on treemap views for macOS. On price, Freemium (Diskaroo) vs Open source (GrandPerspective). 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 Diskaroo or GrandPerspective wins on price.