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macUSB vs Caligula: catalog facts
macUSB	Caligula
Free Downloaded from GitHub releases or Homebrew, with an optional support link.	Free Free and open source.
macOS	macOS, Linux, Command line
Downloads official macOS installers from Apple inside the app Handles legacy macOS installers on Apple Silicon	Interactive terminal interface instead of raw dd commands Progress display while writing
macOS only, and requires macOS 14.6 or newer Licence of the published source is not stated in the research	No graphical interface No Windows support indicated
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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