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Braina vs Leon: catalog facts
Braina	Leon
Freemium A free download is available; check the site for paid editions.	Free Free and open source under the MIT licence.
Windows, macOS	Self-hosted
Voice control of the computer in many languages Dictation in over 100 languages	Runs on your own server under your control Extendable with modular skills
Closed source Marketing on the site is broad, so capabilities are best tested directly	Requires setting up and maintaining a server Aimed at people comfortable with Node.js and Python
Downloadable app	Self-hosted
Closed source	Open source
License not stated	License: MIT
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 26, 2026	Official website Full listing and sources Checked September 26, 2026

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