Sleuthbox

Clean up your inbox day by day. Now block senders, unsubscribe in bulk, free up storage, and spot fake emails. No servers, no data sold. Your mail stays on your iPhone.

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.