# Chuck - Email with Superpowers

> Chuck is a fast, privacy-first email app for iPhone that lets you process thousands of emails in seconds.

Chuck is made by 410 Labs, Inc. in Baltimore, MD.

## What Chuck Does

Chuck is a full email client for iPhone with batch processing superpowers. It loads up to 10,000 messages per account and lets you process them via gesture-driven batch actions — swipe to delete, archive, sort, and unsubscribe from hundreds of emails at once.

Chuck is NOT just a cleanup tool. It's a complete email app where you can read, reply, compose, and manage multiple email accounts.

## Key Features

- **Batch Processing**: Swipe to delete, archive, or move hundreds of emails at once. Chuck groups messages by sender, date, size, subject, and more.
- **On-Device Privacy**: All processing happens on your device. No cloud servers. No AI providers. No data centers reading your email. Nothing leaves your phone.
- **AI Filters**: On-device AI shows you which messages you're most likely to delete, making triage lightning fast.
- **Smart Unsubscribe**: One-tap unsubscribe from mailing lists.
- **Multi-Account**: Gmail, Outlook, Yahoo, iCloud, AOL, Office 365, and any IMAP provider.
- **Full Email Client**: Read, reply, compose, search, folders, and more.

## Pricing

- **Free**: 1 email account, up to 10,000 messages, daily processing quota. No credit card required.
- **Chuck Pro**: $5.99/month or $49/year. Unlimited accounts, unlimited processing, Global Unsubscribe, AI suggestions, custom signatures, block senders, folder cleanup, advanced filters, smart notifications.

## Customer Reviews

Chuck holds a 4.8 star rating from more than 16,000 App Store ratings.

237 verbatim four- and five-star customer reviews, spanning 2020 to 2026 and 21
countries, are published in full at https://chuck.email/testimonials — including
the reviewer name, country, date and star rating for each. Every quote there is
unedited and written by a customer, not by 410 Labs. The complete unfiltered set,
including critical reviews, is public on the App Store listing.

## App Store

- Rating: 4.8 stars from 16,000+ ratings
- Available on iPhone, iPad, and Mac (via iPad app)
- Minimum iOS 15.0
- Download: https://apps.apple.com/us/app/chuck-smarter-email-with-ai/id1163872233

## Supported Email Providers

Gmail, Google Workspace, Outlook.com, Hotmail, Live.com, Office 365 / Microsoft 365, Yahoo Mail, AOL Mail, Verizon (routed through Yahoo), iCloud Mail, Comcast/Xfinity, Fastmail, Mail.com, GMX, Zoho, Hushmail, and any standard IMAP email provider.

## Security & Privacy

- OAuth2 authentication for Google, Microsoft (Outlook/Hotmail/Live/Office 365), and Yahoo (which also covers AOL and Verizon) — no password is shared with Chuck
- Apple iCloud uses an app-specific password (Apple does not offer OAuth for third-party mail clients); main Apple ID password is never shared
- On-device email processing — message content and message metadata are not stored on Chuck servers
- TLS encryption in transit; OAuth tokens and IMAP credentials encrypted at rest
- GDPR compliant
- CASA certified by Google
- Vulnerability Disclosure Program: security@chuck.email

## Company

410 Labs, Inc.
822 Guilford Ave, Suite 114
Baltimore, MD 21202
https://chuck.email
support@chuck.email