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Singlebox vs Orbit: catalog facts
Singlebox	Orbit
Freemium Free to download, with paid WebCatalog plans available.	Paid One-time purchase after a 14-day free trial with no card needed.
Windows, macOS	macOS
Multiple accounts of the same service side by side Isolated sessions per account	Each Google account isolated in its own session Uses the real Gmail and Google Workspace web apps
Wraps web apps rather than native clients No Linux version of Singlebox mentioned	Mac only Only for Google accounts, not other mail providers
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Needs internet	Not stated if it works offline
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.