Sigma

It's the best way
to manage your inbox

The email client for people who have given up on managing their email.

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Powerful Features

Discover how Sigma helps you create a healthier relationship with technology

Smart Filtering

Intelligently filter out distractions and unwanted content, helping you stay focused on what matters most.

Mute & Block

Take control of your digital space with powerful tools to mute or block unwanted contacts and content.

Privacy Protection

Emails are encrypted end-to-end even on your local device, so your data is secure.

Focus Mode

Eliminate distractions with our Focus Mode that temporarily pauses notifications and highlights only your most important messages.

Coming Soon

Smart Reply

Respond faster with AI-powered suggested replies that adapt to your writing style and common responses over time.

Coming Soon

Priority Inbox

Let our intelligent system learn what matters most to you and automatically organize emails based on importance and urgency.

Connect With Our Team

Be heard. Talk directly to the founders.

Join Our Discord

Connect with our community, get support, and share your feedback in real-time.

Join Discord Community

Email Our Cofounders

Have a specific question or suggestion? Reach out directly to our team.

Contact Us

Free Early Access

While premium features may be added in the future, our commitment is to keep the core functionality free and accessible to everyone.

Currently Free

Free

$0/month

Everything you need for better email management

  • Powerful email management tools
  • 100% ad-free experience
  • No data collection
  • Your data stays private
Get Started

No credit card needed, just jump in

Frequently Asked Questions

If you can't find what you're looking for, send us an email.

No, we only support Gmail accounts at this time. Let us know which email provider you use and we will work on adding support for it. As a workaround, it may be possible to use an inbox rule on your preferred provider to forward your emails to a burner Gmail account, and sign in with that.

Your email data is encrypted and stored on your devices, not ours. We have taken and passed a third party security audit (CASA Tier 2) required by Google in order to access your Gmail account. In addition, we are backed by many things that Gmail provides in terms of security. For example, 2FA, SSO, and malicious email filtering are all handled by Google.

No, we don't touch your Gmail inbox. The only exception is if you choose to send email through Sigma - we send those emails (and ONLY those emails) from your Gmail account and they will appear in your Gmail sent folder. You can leave Sigma at any time and your Gmail inbox will be exactly how you left it. If anything goes wrong with Sigma, your Gmail account should not be affected in any way.

Sigma uses your existing email address. You can send and receive emails from your current @gmail.com email address.

No, Sigma employees do not have access to your emails. None of your emails are ever stored on our servers, logged, or looked at. They are accessed through the Gmail API and then stored on your device. Sigma servers only store your basic user information.

Because we use your Gmail account, you have the same storage limits as your Gmail account. If you pay for more data in Gmail, you will have the additional space in Sigma.

You can delete your account from the account management page inside of Sigma, or you can email us at matt.gogan@pocketcity.app to have your account and data deleted.

Ready to Take Control of Your Digital Life?

Join thousands of users who have transformed their relationship with technology and reclaimed their focus.