Disk Space Analyzers, Side by Side
OverClean vs. DaisyDisk, GrandPerspective, and OmniDiskSweeper — what each tool actually does.
| Feature | OverClean | DaisyDisk | GrandPerspective | OmniDiskSweeper |
|---|---|---|---|---|
| Visual treemap / chart view | ✓ | ✓ | ✓ | — |
| Automatic file categorization (26+ types) | ✓ | — | — | — |
| Applications manager (installed app sizes) | ✓ | — | — | — |
| Leftovers detection (orphaned app data) | ✓ | — | — | — |
| Dev clutter detection (node_modules, venvs, Docker, Xcode) | ✓ | — | — | — |
| Native Apple Silicon build | ✓ | ✓ | ✓ | ✓ |
| Minimum macOS version | 14.6 (Sonoma) | 10.13 | 10.13 | 10.9 |
| Free tier before purchase | Dashboard + category overview | None (paid upfront) | Fully free | Fully free |
| Price | $9.99 one-time, up to 3 Macs | $9.99 one-time | Free | Free |
DaisyDisk is a trademark of Software Ambience Corp. CleanMyMac is a trademark of MacPaw Inc. GrandPerspective and OmniDiskSweeper are trademarks of their respective owners. OverClean is not affiliated with, endorsed by, or sponsored by these companies. Product details verified on 2026-08-22 — check each vendor's site for current pricing and features.
Which one is right for you?
DaisyDisk is a well-known, one-time-purchase visual disk map — its treemap view is fast at finding individual large files, but it stops at visualization: no file categorization, no applications manager, and no detection of orphaned data from apps you've already uninstalled.
GrandPerspective and OmniDiskSweeper are free, long-standing tools for exactly one job — a treemap and a sorted file list, respectively. Neither categorizes files by type, flags development clutter (node_modules, Python venvs, Xcode DerivedData), or manages installed applications.
OverClean adds automatic categorization across 26+ file types, an Applications Manager, Leftovers Detection for orphaned app data, and dedicated development-clutter scanning — on top of a visual dashboard. Scanning and the category overview are free; the deeper tools unlock with a one-time license.
Try OverClean free
Download and scan your Mac at no cost — see the Dashboard and category overview before you decide.
Download & Scan Free