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All-in-One Messenger vs Singlebox: catalog facts
All-in-One Messenger	Singlebox
Free Free download from the developer's site.	Freemium Free to download, with paid WebCatalog plans available.
macOS	Windows, macOS
Supports more than 40 messaging services Multiple instances of the same service	Multiple accounts of the same service side by side Isolated sessions per account
Wraps web versions of services rather than native clients Website still lists discontinued services such as Skype	Wraps web apps rather than native clients No Linux version of Singlebox mentioned
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
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 2, 2026

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