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OpenDisk vs DaisyDisk: catalog facts
OpenDisk	DaisyDisk
Free Free and open source under the MIT licence.	Paid A one-time purchase is required. The software is closed source.
macOS	macOS
Interactive sunburst view with one-click cleanup Incremental repeat scans	Collect files into a holding area and delete them in one confirmed step Fast scans with a genuinely pleasant interface
macOS only Requires macOS 15 Sequoia or later	Paid application, macOS only
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.