Your AI assistant to reach inbox zero fast
Inbox Zero is an open-source AI email assistant and email client that automatically sorts and labels your inbox, drafts replies in your voice, bulk unsubscribes from newsletters, blocks cold emails, and provides email analytics. It works as a layer on top of Gmail and Outlook, or through its own standalone email app on web, desktop, and iPhone.
AI labels and sorts every incoming email into smart categories such as Newsletter, To Reply, Marketing, Calendar, Notification, Cold Email, Team, and Urgent. Use the defaults or create your own categories, configured in plain English.
Every email needing a response gets a pre-drafted reply in your tone, based on your email history, calendar, and CRM data, ready for you to review and send.
See which emails you never read and one-click unsubscribe and archive them to clean up your inbox fast.
Automatically blocks cold emails so unwanted outreach never reaches your primary inbox.
See who emails you most and what's clogging your inbox, with clear insights you can act on. Team-wide analytics are available on the Professional plan.
Manage email from Slack, Telegram, iOS, Android, and the web, plus a standalone fast email app for web, Mac, Windows, and iPhone.
Connects to your calendar and CRM so drafts reflect your actual schedule and customer data. Includes pre-meeting briefings and an AI meeting notetaker on paid plans.
Slack integration, app integrations (Notion, Stripe, and more), email digests, auto-filed attachments, and a knowledge base the assistant can draw on.
Link your Google (Gmail / Google Workspace) or Microsoft (Outlook) account in two clicks.
The assistant sets up smart categories automatically, or you define your own rules in plain English.
Every email needing a response arrives with a draft based on your email history, calendar, and availability — you just review and send.
The email app itself is free on web, desktop, and iPhone. AI assistant plans start at $18/user/month (Starter) with 7-day free trials, and annual billing saves up to 20%. Discounts are available for students, nonprofits, and open-source projects, and there's a 14-day refund policy.
$0
Free fast email app for Gmail and Outlook on web, desktop, and iPhone. Add the AI only if you want it.
$18/user/month (annual), $20/mo billed monthly
For individuals, entrepreneurs, and executives. Sorts and labels every email, drafts replies in your voice, blocks cold emails, bulk unsubscribe and archive, email analytics, and pre-meeting briefings.
$28/user/month (annual), $35/mo billed monthly
Everything in Starter, plus 2 email accounts per user, AI meeting notetaker, Slack integration, app integrations (Notion, Stripe, and more), email digests, auto-file attachments, and unlimited knowledge base.
$42/user/month (annual), $50/mo billed monthly
Everything in Plus, plus team-wide analytics, priority support, and a dedicated onboarding manager.
Custom pricing
Custom plan with SSO, SCIM, on-premise deployment, and a dedicated account manager. Contact sales.
Gmail, Google Workspace, and Microsoft Outlook email accounts.
Yes. The AI assistant, the web app, and the desktop email app are open source in the project's GitHub repo (12k+ stars). The iPhone app isn't open source yet, but the team plans to open it. Self-hosting is supported for those who want total control.
Yes. The email app is free to use, and the AI assistant plans include a 7-day free trial. A credit card is required to start the trial, but you won't be charged until it ends, and you can cancel anytime during the trial.
It doesn't have to. Inbox Zero works inside Gmail and Outlook so you can keep using them while the assistant works in the background. It also offers its own email app for web, desktop, and iPhone.
Yes. There's a native iPhone app for triaging your inbox and managing your assistant on the go, plus an Android app that's due for an update.
Yes, you can upgrade or downgrade at any time. Changes take effect immediately and billing is prorated.
Yes. If you don't think you got value, email them within 14 days of upgrading for a refund.
All major credit cards through Stripe. Annual billing saves up to 20%, and discounted plans are available for students, nonprofits, and open-source projects.
