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Ferdium vs All-in-One Messenger: catalog facts
Ferdium	All-in-One Messenger
Free Free and open source under Apache 2.0. Unlike Franz, the project states it does not…	Free Free download from the developer's site.
Windows, macOS, Linux	macOS
Hundreds of services supported, with workspaces to group them No paid account or usage restrictions, unlike the Franz it forked from	Supports more than 40 messaging services Multiple instances of the same service
Each service is a web view, so memory use grows quickly with many services Service integrations break when a provider changes its web app	Wraps web versions of services rather than native clients Website still lists discontinued services such as Skype
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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