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Inbox Zero vs SaneBox: catalog facts
Inbox Zero	SaneBox
Freemium Free to start, with paid and sales-led plans for more use.	Paid Paid subscription with a free trial that needs no credit card.
Web	Web
Automatic labelling and pre-drafted replies Bulk unsubscribe and cold email blocking	Works with any email client and provider Nothing to install
Supports Google and Microsoft accounts only Mobile apps are not yet available	Requires giving a third-party service access to your mailbox Ongoing subscription after the trial
Web application, Hosted service	Hosted service
Open source	Closed source
License not stated	License not stated
Account needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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