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Nextcloud Talk vs Databag: catalog facts
Nextcloud Talk	Databag
Free Free and open source as part of a Nextcloud server you host.	Free Free and open source under the Apache-2.0 licence.
Android, Web, Self-hosted	Android, Web, Self-hosted
Runs on your own server Chat, calls and webinars in one app	Low hosting resource use Federation between separate server nodes
Needs a Nextcloud server to use Setting up reliable video calls takes extra server work	Needs your own server to run Smaller user base than mainstream messengers
Downloadable app, Web application, Self-hosted	Downloadable app, Web application, Self-hosted
Open source	Open source
License not stated	License: Apache-2.0
Account needed	Account needed
Needs internet	Not stated if it 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.