Inbox Zero is a paid AI email assistant for people handling more email than they can manage manually. It works with Gmail, Google Workspace, and Microsoft Outlook accounts through web, iOS, Android, extension, API, or self-hosted deployments. The service can sort messages with smart labels, draft replies in your voice, unsubscribe from unwanted mail in bulk, block cold emails, and provide email analytics. Plain-English rules let users define labels and actions. Brief My Meeting creates briefing emails using meeting-participant research and context from an inbox and calendar. The assistant is also available in Slack and Telegram. Inbox Zero is open source, with code on GitHub, and can be self-hosted. Its hosted product is SOC 2 compliant, with Trust Center information identifying SOC 2 Type 2 compliance. The privacy policy says email content is not stored on its servers and Google email data is not used for advertising. Paid plans start at 20.00 USD per month per user, with a 7-day trial and no free plan.
Who it is for
It suits founders, operators, and professionals who receive more email than they can handle manually. It also fits teams wanting self-hosting or integrations through Slack, Telegram, or an API.
What is good
- Works with Gmail, Google Workspace, and Outlook
- Drafts replies in the user's voice
- Plain-English rules configure labels and actions
- Open source and self-hostable
- 7-day trial available
What to know first
- No free plan
- Paid plans start at 20.00 USD per user monthly
Verdict
Inbox Zero combines inbox automation, reply drafting, meeting briefings, and analytics across web and mobile access. Its paid-only model and per-user pricing should be weighed against its open-source and self-hosting options.
Inbox Zero plans and pricing
All plansCompared on AI email assistants
- Free plan
- No
- Inbox triage
- Yes
- AI reply drafting
- Yes
- Automatic sending
- Yes
- Thread summaries
- Yes
- Follow-up actions
- Yes
- Email platforms
- gmail





