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Pumble vs Synology Chat: catalog facts
Pumble	Synology Chat
Freemium Free with unlimited users and message history; paid plans are sold for businesses.	Free License-free, but it requires a Synology NAS to host the server.
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux, Android, iOS, Web, Self-hosted
Unlimited users and message history on the free offering Channels, threads, calls and recording in one app	Messages stay on your own NAS Optional end-to-end encryption for conversations or channels
Hosted service only, with no self-hosting option Closed source	Only runs on Synology NAS hardware Closed source
Downloadable app, Hosted service	Downloadable app, Web application, Self-hosted
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

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