# Sleuthbox — Investigate & Clean Your Inbox > Securely manage and clean your email inbox with privacy-focused features. (iPhone/iPad app by Neville Forsythe.) - Source: https://appshunter.io/ios/app/sleuthbox/id6829015429 (this page in markdown: same URL + `.md`) - Developer: [Neville Forsythe](https://appshunter.io/developer/1819374550) - Category: Productivity, Utilities - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 3 MB - Languages: American English - Released: 2026-11-01 - Data updated: 2026-11-06 - Monetization: free ## What is Sleuthbox? Most email cleaners want access to your mailbox and process it on their own servers. Sleuthbox doesn't have a server. Your iPhone talks directly to your email provider, your password stays in the iPhone's Keychain, and your mail never passes through anyone else. We collect no data at all. KEEP WHAT MATTERS. CLEAR THE REST. Instead of hunting for what to delete, Sleuthbox shows your email one day at a time. Tap the circle next to the few emails worth keeping, then clear everything else in one tap. Or flip it around and select only what should go. Not sure about an email? Tap it to read it right in the app. INVESTIGATE YOUR INBOX Insights scans anywhere from 30 days to your entire mailbox, even decades of mail, and shows you: - Who emails you most, ranked by exact address, so a store's receipts and its promotions stay separate - Senders you never open - Who's using the most storage, plus your largest emails - Newsletters you skip, old unread mail, and Gmail Promotions and Social - How much mail you get each day and your busiest times Every suggestion opens as a list grouped by sender, already selected. Untick what you want to keep and clear the rest. Long scans show results as they go and pick up where they left off. IT LEARNS WHAT YOU CLEAR Sleuthbox remembers which senders you usually clear and flags their next emails for you. The learning happens entirely on your iPhone, and you can export it as a backup. READ PRIVATELY Opened emails never run scripts, and images from the internet stay blocked until you choose to load them, so senders can't tell you opened their email. Opening an email doesn't mark it as read. Attachments show their name and size and download only when you tap them. SAFE BY DESIGN - Undo every sweep with one tap - Choose Trash or Archive. Archived mail is never deleted - Starred emails and senders you always keep are never touched - Optional Face ID lock AUTOMATIC RULES Clear predictable mail for you, such as deals after a week or a newsletter you never read. Preview exactly what a rule will catch before you save it. Rules are off until you turn them on. MORE - One-tap unsubscribe from mailing lists - Multiple accounts, each with its own settings and history - Optional Reply & Forward that hands replies to the mail app you already use - A built-in guide and troubleshooting help WORKS WITH Gmail, iCloud Mail, Yahoo Mail, AOL Mail, Fastmail and most other IMAP email providers. Sign-in uses an app password, a separate password just for Sleuthbox that you can revoke at any time; the app walks you through creating one. Outlook.com and Hotmail accounts are not supported. Some work and school accounts don't allow app passwords. Sleuthbox isn't affiliated with Google, Apple, Yahoo or any email provider. ## Key features - Privacy-focused email processing - One-tap email clearing - Daily email review - Inbox insights and analytics - Automatic sender learning - Private email reading - Undo sweeps and archive options ## Is Sleuthbox safe? Not enough ratings yet to assess Sleuthbox. ## Is Sleuthbox legit? Sleuthbox appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Sleuthbox is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Frequently asked questions about Sleuthbox ### 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. ## Version history (last 2 releases) ### 1.2 — 2026-11-04 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 ### 1.0 — 2026-11-01 No release notes. ## More apps by Neville Forsythe - [Contact Queue](https://appshunter.io/ios/app/contact-queue/id6747011303) - [ABL-MBA](https://appshunter.io/ios/app/abl-mba/id6747303248) - [ABL - Leadership Development](https://appshunter.io/ios/app/abl-leadership-development/id6747328521) - [The Nag](https://appshunter.io/ios/app/the-nag/id6747867034) - [ZenSteps](https://appshunter.io/ios/app/zensteps/id6754582825) - [ZenSteps+](https://appshunter.io/ios/app/zensteps-plus/id6755162744) All apps by Neville Forsythe: https://appshunter.io/developer/1819374550 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-06.*