Compared

DiskDuo vs DaisyDisk

DaisyDisk is a beautiful, single-purpose disk map, and it has been the answer to “where did my space go” on the Mac for years. DiskDuo overlaps with it and then keeps going.

The short answer

If all you want is the most elegant way to see your disk, DaisyDisk is a fine buy. If you want the map and the work that follows — duplicates, uninstalling, security, a menu bar monitor — DiskDuo is one purchase for the lot.

Side by side

 DiskDuoDaisyDisk
Disk mapNine views: treemap, sunburst, flame, bubbles, mind map and moreOne sunburst, beautifully done
SelectionKept as you move between viewsWithin its own view
Duplicate finderIncluded, clone-awareNot its purpose
App uninstallerIncluded, with leftovers explainedNot its purpose
Security check and malware scanIncludedNot its purpose
Menu bar monitorFree space, activity and a popoverNot its purpose
How you payOne paymentOne payment

Nine readings of one scan

A sunburst is excellent for structure and poor for “what are my twenty biggest files”. A list is the reverse. DiskDuo scans once and answers both, along with an age map for what you have not touched in a year, and keeps your selection as you move between them.

The work after the map

Finding the space is half of it. DiskDuo stages what you approve and moves it to the Trash, finds byte-identical duplicates while skipping APFS clones, uninstalls an app with the files it left behind, and tells you which protections macOS has switched on.

Where DaisyDisk is the better buy

DaisyDisk’s sunburst and its animation are still the nicest thing of their kind on the platform, and it has a long, steady record. If elegance is what you are buying, it earns its price.

Questions

About the two of them.

Does DiskDuo have a sunburst view?

Yes, along with a treemap, flame graph, bubbles, a mind map, folders, top sizes, an age map and an outline — all of one scan.

Decide with your own disk in front of you.

Download it, scan, and see the figures before you buy.

Download DiskDuo