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Keynote vs Sozi: catalog facts
Keynote	Sozi
Freemium Available on Apple devices, with an optional Apple Creator Studio subscription covering…	Free Free and open source under the Mozilla Public License 2.0.
macOS, iOS, Web	Windows, Linux
Separate presenter window for video calls on Mac Browser version usable from Windows computers	Zooming, panning presentations built from one SVG drawing Works with drawings made in Inkscape or other SVG editors
Native apps only for Apple devices Windows users are limited to the browser version	Last stable release announced on the website dates from 2021 Video export needs separately installed ffmpeg binaries
Downloadable app, Web application	Downloadable app
Closed source	Open source
License: Proprietary	License: MPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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