OpenDisk vs DaisyDisk

Two sunbursts, side by side.

DaisyDisk is a polished, paid Mac app, and the sunburst chart it made popular is the inspiration for OpenDisk’s. Both show what’s filling your disk. Here’s where they differ.

FeatureOpenDiskDaisyDisk

PriceFree$9.99

Source codeOpen source, MITClosed source

Full scan of 1 TB17 s37 s

RescansRereads only what changedRescans everything

Caches and purgeable spaceListed item by itemShown as one total

TelemetryNone, and you can checkNot verifiable

Measured on an Apple silicon Mac, scanning a 1 TB APFS drive from a cold start. A drive with more files takes longer.