| Core approach | PublishedA deliberate sender-by-sender cleanup ritualRank senders, inspect the effect, then choose Keep, Archive, Unsubscribe, Later, or Delete. | PublishedTrain importance-sorting foldersSaneLater and other selectable features sort new mail on the user’s mail server. |
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| Mailbox support | Scope differsGmail and Google WorkspaceDeclutrMail is intentionally Gmail-specific today. | PublishedBroad provider supportSaneBox publishes support for Gmail and most provider-hosted IMAP-style accounts. |
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| Existing-mail cleanup | PublishedYes — by senderArchive, Later, and Delete act on matching current inbox mail. Unsubscribe does not move existing mail. | PublishedBacklog sorting plus Email Deep CleanSaneBox says initial SaneLater backlog processing happens gradually overnight. |
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| Future-mail automation | Scope differsSeparate Pro automationAutopilot rules are configured separately. A one-time Archive or Later action does not automatically become a future-mail rule. | PublishedCore behaviorNew mail is left in Inbox or moved to a selected Sane folder as it arrives. |
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| Unsubscribe or block | Scope differsWhen sender metadata supports itRFC one-click requests can run directly. Mailto-based requests require a manual step; unsupported senders stay explicit. | Scope differsSaneBlackHole trains future mail to TrashSaneBox markets this as one-click unsubscribe; its help page describes sender training to Trash rather than a confirmed mailing-list opt-out. |
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| Preview and recovery | Scope differsJournaled for reversible label actionsArchive, Later, and Delete use the plan Activity Undo window. Delete also has separate Gmail Trash recovery, normally up to 30 days. Unsubscribe is not a reversible DeclutrMail action. | Scope differsCorrect by moving and retrainingFresh SaneBlackHole messages remain reviewable for seven days; a general action-journal undo window is not publicly stated. |
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| Email-data posture | PublishedMetadata and Gmail’s short preview snippetFull message bodies and attachments are not fetched. | Scope differsHeaders for core sorting; optional features can need moreSaneBox says core features use headers. Its privacy help lists limited extra access for attachments, reminders, and some snooze options. |
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| Public starting point | PublishedFree, $9 Plus, or $19 Pro monthlyFree includes 5 lifetime cleanup actions. Plus is $90/year; Pro is $190/year, with a limited $129 founding offer in the current tier manifest. | Published14-day trial; paid plans by accounts and feature slotsOfficial pricing lists 1/2/4 accounts with 2/6/all selectable Sane features. |
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