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Cleanfox vs Inbox Zero: catalog facts
Cleanfox	Inbox Zero
Free Free to use; funded by selling statistical data derived from scanned emails.	Freemium Free to start, with paid and sales-led plans for more use.
Android, iOS, Web	Web
Bulk unsubscribe and delete in one step Works with Gmail, Outlook and other mailboxes	Automatic labelling and pre-drafted replies Bulk unsubscribe and cold email blocking
Scans your mail and sells statistics derived from it Needs access to your mailbox	Supports Google and Microsoft accounts only Mobile apps are not yet available
Downloadable app, Web application	Web application, Hosted service
Closed source	Open source
License not stated	License not stated
Account needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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