Head to head
| Disk Graph | SpacePeek | |
|---|---|---|
| Visualization | Mixed | List |
| Platform | macOS + iOS | macOS |
| Pricing | Paid Paid one-time purchase (around $6 at time of writing) | Freemium Free tier; Pro is a cheap one-time unlock |
| Open source | No | No |
| Native Mac | Yes | Yes |
Updated September 2026 · Prices change — please verify with the vendor.
Disk Graph
Pie-chart and treemap inspector with snapshots and search.
＋ Disk Graph: Strengths
- Multiple views: pie charts, treemaps, and file search
- Snapshots let you compare disk usage over time
- Universal purchase across Mac, iPhone, and Vision Pro
－ Disk Graph: Weaknesses
- Jack-of-views approach means no single standout visualization
- Cleanup workflow is thinner than dedicated cleaners
- Smaller user base means fewer guides and comparisons
Read the review: Disk Graph → · Disk Graph See alternatives →
SpacePeek
A read-only Quick Look inspector for folders and archives.
＋ SpacePeek: Strengths
- Read-only by design — it cannot delete anything, so it's extra safe
- Peeks inside folders and archives with Finder-style Quick Look
- Very cheap Pro unlock
－ SpacePeek: Weaknesses
- Read-only means no cleanup workflow at all
- No sunburst or treemap overview of a whole drive
- Niche tool, not a full disk analyzer
Read the review: SpacePeek → · SpacePeek See alternatives →
Verdict: Disk Graph vs SpacePeek
Choose Disk Graph if you want mixed visualization on macOS + iOS. Choose SpacePeek if you prefer list views at freemium 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, Disk Graph or SpacePeek?
Disk Graph wins on mixed visualization for macOS + iOS; SpacePeek wins on list views for macOS. On price, Paid (Disk Graph) vs Freemium (SpacePeek). 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 Disk Graph or SpacePeek wins on price.