LumaDisk
LumaDisk analyzes storage on Mac and Windows by mapping files and folders into interactive sunburst or treemap views.
What LumaDisk is
LumaDisk analyzes storage on Mac and Windows by mapping files and folders into interactive sunburst or treemap views. Its chart can update while a scan is running, and it can scan external drives. The app groups regenerable developer folders such as node_modules, /target, .next, and DerivedData. It also groups duplicate files with one copy selected to keep, and identifies files of at least 100 MB that have not been opened for six months, a year, or two years. Supported cloud services are iCloud Drive, OneDrive, and Dropbox; Google Drive is described as coming soon. Network volumes can be analyzed read-only. Scanning and the sunburst view remain free. The listed LumaDisk license is $6.89 a month, billed as a one-time payment rather than a subscription, and covers up to five Macs. Requirements are macOS 12 or later on Apple Silicon, or Windows 10 or later on x86-64 or ARM64. Reclaim permanently deletes files, with a ten-second undo window and system-folder safeguards.
Good
- Sunburst and treemap storage views
- Scans external drives
- Groups duplicate files
- Local scans make no network requests
- System folders cannot be queued for deletion
Watch out
- Network volumes are read-only
- Google Drive is listed as coming soon
- Windows Store refunds follow Microsoft's policy
Who it suits
It suits Mac and Windows users who want to inspect storage visually, including people managing external drives or developer build caches. Its duplicate grouping and large, long-unopened file lists may help identify candidates for cleanup.
Verdict
LumaDisk combines visual disk analysis with tools for finding duplicates, developer caches, and older large files. Free scanning is available, while the listed license is a one-time payment of $6.89 a month for up to five Macs.
Plans and prices
From LumaDisk's own pricing page, checked 15 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | disk scanning · sunburst visualization · scanning remains free indefinitely |
| LumaDisk license | $6.89, paid once | unlocks paid features · lifetime updates · license FAQ says up to 3 devices · one-time payment |
The facts
Each one read from LumaDisk's own pages, with the date it was checked.
What it does
- AlternativeTo profile
- AlternativeTo lists LumaDisk as proprietary, pay-once software for Mac and Windows and reports eight interface languages, dark mode, offline use, and no tracking.checked 15 Oct 2026
- AlternativeTo reviews
- The AlternativeTo profile explicitly says it has no comments or reviews.checked 15 Oct 2026
- API and self-hosting
- The opened official materials describe a local desktop application and do not document a public API, SDK, or self-hosted deployment.checked 15 Oct 2026
- Build caches
- It detects and groups regenerable developer folders such as node_modules, /target, .next, and DerivedData.checked 4 Oct 2026
- Cloud authentication
- OneDrive and Dropbox connections use device-side OAuth with PKCE, keeping credentials and tokens on the user's machine.checked 15 Oct 2026
- Cloud integrations
- Supported cloud locations are iCloud Drive, OneDrive, and Dropbox; Google Drive is listed as upcoming.checked 15 Oct 2026
- Cloud privacy
- Cloud connections use OAuth with PKCE on the device, and credentials, tokens, and cloud data are not routed through or stored on LumaDisk servers.checked 4 Oct 2026
- Deletion behavior
- Reclaiming permanently deletes selected items instead of sending them to Trash or the Recycle Bin, with a ten-second undo period.checked 15 Oct 2026
- Deletion safeguards
- Reclaim permanently deletes files, provides a ten-second undo window, and prevents system folders from being queued for deletion.checked 4 Oct 2026
- Developer cache detection
- LumaDisk automatically groups regenerable caches such as node_modules, Rust target folders, .next, and Xcode DerivedData.checked 15 Oct 2026
- Disk views
- It displays folders and files in interactive sunburst or treemap views, and the chart updates while a scan is running.checked 4 Oct 2026
- Documentation
- The official site provides user guides covering topics such as macOS System Data, large-file discovery, hidden Windows folders, and alternatives.checked 15 Oct 2026
- Drive coverage
- The app can scan internal disks, external drives, USB media, SD cards, network volumes, and connected cloud accounts.checked 15 Oct 2026
- Drives
- External drives are fully supported, while network volumes are supported for read-only analysis.checked 4 Oct 2026
- Duplicate finder
- Duplicate groups are presented with a suggested copy to retain, while one copy from each group is always preserved.checked 15 Oct 2026
- Duplicates and unused files
- It groups duplicate files with one copy selected to keep and lists files of at least 100 MB that have not been opened for six months, a year, or two years.checked 4 Oct 2026
- External drive scans
- Yeschecked 22 Sep 2026
- License model
- The software is proprietary and licensed rather than sold; the EULA allows commercial use but restricts redistribution and reverse engineering.checked 15 Oct 2026
- Limit: scan speed
- In the Reddit discussion, the developer acknowledged that WizTree was faster for raw full-drive scans before later adding an NTFS Master File Table fast-scan path.checked 15 Oct 2026
Where it runs
- Desktop platforms
- macOS,Windowschecked 22 Sep 2026
- Device-limit discrepancy
- The homepage FAQ says a direct license covers up to three devices, while the EULA grants up to five personally controlled devices and says Microsoft Store rules supersede that limit for Windows.checked 15 Oct 2026
- Limit: Mac UI and cleanup depth
- NullDisk's review criticizes the cross-platform toolkit feel on Mac, the app's shorter track record, and lighter cleanup tooling than specialist cleaners.checked 15 Oct 2026
- Mac App Store status
- A sandboxed Mac App Store edition had been submitted for review but was not yet available on the date of the privacy page.checked 15 Oct 2026
Money
- Free plan
- Yeschecked 22 Sep 2026
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