getinboxzero.com

UPDATED: September 23, 2025
B2BB2CTechnical FounderWebsite/Web App

Open-source AI email assistant that drafts replies, organizes and labels emails, bulk-unsubscribes, blocks cold outreach, and helps you reach inbox zero fast. Works alongside your existing client (Gmail/Google Workspace and Microsoft Outlook), not a replacement. SOC2 compliant and CASA Tier 2 approved, with optional self-hosting/on‑prem.

MRR (USD)

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TRAILING 30D REVENUE

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LIFETIME REVENUE

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TARGET CUSTOMER

Individuals, entrepreneurs, and executives; teams and growing businesses; enterprises needing SSO, on‑prem, and advanced security/SLA; anyone using Gmail, Google Workspace, or Microsoft Outlook; teams handling support inboxes.

TIMELINE

  • Launched Inbox Zero Tabs on Product Hunt — July 20, 2025 →

    100% free/private Chrome extension to tame newsletter noise; personal backstory of 100+ daily emails.

  • Released Outlook support — July 30, 2025 →

    Expanded beyond Gmail to Microsoft Outlook.

  • Joined Vercel OSS Program — August 8, 2025 →

    Recognition within Vercel's open-source ecosystem.

  • Added SSO; moving upmarket — September 7, 2025 →

    Enterprise features added for larger customers.

  • Microsoft verified — September 10, 2025 →

    Verified status in the Microsoft ecosystem.

TECH STACK

Open-source Next.js-style web app deployed on Vercel; Outlook and Gmail/Google Workspace support; SSO; Prisma ORM; PostHog for analytics; Vercel AI SDK usage; Microsoft verification; optional self-host/on‑prem.

LATEST USERS

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USERS CHANGE

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FINANCIALS

  • expense — $5,000 USD · as of August 17, 2025
    I paid for $5000 for this. Thanks @TryCompAI !

TRACTION

  • users — 15000 count · as of September 15, 2025
    Trusted by 15,000+ productive users
  • signups — 26 count · as of September 3, 2025
    I got 26+ sign ups. But 0 sign ups are starting trials.

FOUNDERS

Elie Steinbock
@elie2222 · Israel
Skills: Vercel, Prisma, PostHog, AI SDK

Founder of Inbox Zero; heavy open-source contributor (#4 in Israel in a ranking); part of Vercel OSS Program; organizes Cursor meetups; shipped Outlook support and SSO; Microsoft-verified.

PRODUCT–FOUNDER FIT

The founder experienced overwhelming email volume (100+ emails/day) and built an AI assistant to triage, draft replies, and filter noise, leveraging deep hands-on expertise with modern AI tooling and rapid shipping on Vercel.

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