
Sleuthbox
Investigate & Clean Your Inbox
About
This app helps you manage your inbox by showing emails one day at a time, allowing you to quickly keep or delete messages. It provides insights into your email habits and automatically learns your preferences for efficient cleanup. Your data remains private and secure on your device.
What's New in Sleuthbox
1.2
November 4, 2026
Sleuthbox 1.2: the biggest update yet Stop unwanted mail Block a sender: clear everything they’ve sent, and Sleuthbox keeps clearing new mail from them Keep only the latest: keep a sender’s newest 1–10 emails and clear the rest automatically. Perfect for statements, shipping updates and sign-in codes New Subscriptions view: see every mailing list, then unsubscribe, clear and block several at once Free up space New Storage view shows how much of your storage you’re using See what Trash and Spam are holding, and empty them to get space back right away Track how much mail you’ve cleared with Sleuthbox Is this email genuine? Every email you open shows whether your provider confirmed who really sent it Warnings for lookalike addresses (like paypa1.com) and names pretending to be a company Checked privately on your iPhone. Nothing is sent anywhere Smarter Insights New Protected section: see every starred email, sender and domain you’ve locked, and how much mail each keeps. Unlock any with a swipe Grouped lists now collapse to one row per sender, with search and Expand/Collapse All Faster, clearer cleanups Live progress when clearing or restoring mail, so you always know it’s working On iOS 26, big cleanups keep going in the background, with progress on your Lock Screen Your Trash, Archive and Undo now go ahead of Insights updates, so no more waiting More reliable Fixed connection errors when returning to the app or switching between Wi-Fi and cellular Sleuthbox now reconnects automatically and retries when the network comes back
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FAQ
How does Sleuthbox protect my email privacy?
Sleuthbox is designed with privacy as a core principle. It processes your mail directly on your iPhone, never sending it to external servers. Your password is stored securely in your device's Keychain, and the app collects no user data.
What email providers does Sleuthbox support?
Sleuthbox works with Gmail, iCloud Mail, Yahoo Mail, AOL Mail, Fastmail, and most other IMAP email providers. It does not support Outlook.com or Hotmail accounts, and some work/school accounts may not be compatible.
Can I undo an email cleanup with Sleuthbox?
Yes, Sleuthbox offers an 'Undo every sweep with one tap' feature, allowing you to easily revert any clearing actions you perform. You can also choose to Trash or Archive emails, with archived mail remaining undeleted.
How does Sleuthbox learn my email preferences?
Sleuthbox learns which senders you typically clear and automatically flags their future emails for you. This learning process happens entirely on your iPhone, and you can export this learned data as a backup.
Does Sleuthbox have ads?
No, Sleuthbox does not contain advertisements. It is a completely free application with no ads to disrupt your email management experience.
What are the insights provided by Sleuthbox?
Sleuthbox's Insights feature scans your mailbox to show you who emails you most, senders you never open, who uses the most storage, largest emails, newsletters you skip, and more. These insights are grouped by sender for easy review.
How often is Sleuthbox updated?
The latest version of Sleuthbox is 1.2, and it was last updated on November 4, 2026. This indicates a recent update, suggesting ongoing development and support for the application.
Is Sleuthbox suitable for younger users?
Sleuthbox has an age rating of 4+, making it suitable for a wide range of users. The app's focus on privacy and straightforward email management is beneficial for users of all ages.




