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Nheko vs Commet: catalog facts
Nheko	Commet
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free, funded by donations, with source code on GitHub.
Windows, macOS, Linux	Windows, Linux, Android, Web
Supports encrypted conversations and platform-dependent calling features.	Several Matrix accounts logged in at the same time Voice channels and one-to-one calls
The project says its encryption implementation has not been audited.	No macOS or iOS app listed Needs a Matrix account
Downloadable app	Downloadable app, Web application
Open source	Open source
License: GPL-3.0	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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