Compare software

Duetto vs Element Call: catalog facts
Duetto	Element Call
Free Free and open source under the GPL 3.0 or later.	Free Free and open source under the AGPL-3.0, with a commercial licence also offered.
Android, Self-hosted	Web, Self-hosted
End-to-end encrypted audio and video Always-on channel with no calling step	End-to-end encrypted group calls Built on the open Matrix protocol
Limited to two people by design Very new project with little track record	Self-hosting requires a Matrix setup alongside it Focused on calls, with no text chat of its own
Downloadable app, Self-hosted	Web application, Self-hosted
Open source	Open source
License: GPL-3.0-or-later	License: AGPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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