Laying out the streets…STEP 1 OF 3

Inbox Zero · Office #44,009

Open-source Superhuman alternative

In the Taming an inbox neighborhood (Work and office). In town since 18 Oct 2026.

Nobody has claimed this office yet. Tablif records every new product and gives it an office; when its owner claims it, the lights go on.

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What Tablif read on Inbox Zero's site

What it is

Calls itself “email client”.

  • Calls itself: email client
“Inbox Zero Mail is an open-source email client for Gmail and Outlook.”

Where it puts itself

Positions itself as an alternative to Superhuman. Claims “#1 GitHub Trending”. Rules out “AI training”. Publishes a comparison page.

  • Alternative to: Superhuman
  • Superlative claim: #1 GitHub Trending
  • Says it will not: AI training
“Open-source Superhuman alternative”
“#1 GitHub Trending”

What it costs

Monthly subscription and yearly plan. A free tier, free forever. Trial: “7-day”. Has an enterprise plan. Sales on request. Prices quoted: $18/user/month, $28/user/month, $42/user/month.

  • Monthly: yes
  • Yearly: yes
  • Free plan: free forever
  • Price: $18/user/month · $28/user/month · $42/user/month
  • Trial: 7-day
  • Enterprise plan: yes
  • Contact sales: yes
“$ 18 /user /month”
“$ 28 /user /month”

Who it sells to

Sells to businesses. Built for solo users and teams.

  • Sells to: businesses
  • Company size: solo / indie · teams
“For teams and growing businesses handling high email volumes.”
“For individuals, entrepreneurs, and executives looking to buy back their time.”

How it runs

A desktop app, mobile app and web app for Windows and macOS. Can be self-hosted. Open source. AI is the core of the product. Built with Google Analytics.

  • Kind: desktop · mobile · web
  • Runs on: Windows · macOS
  • Runs where: self-hosted
  • Open source: yes
  • AI role: core to the product
  • Analytics: Google Analytics
“Inbox Zero Mail is an open-source email client for Gmail and Outlook. Fast, keyboard-first, and free to use, on web, Mac, Windows and iPhone”
“Fast, keyboard-first, and free to use, on web, Mac, Windows and iPhone”

What it works with

Plugin for Inbox Zero Tabs (Chrome Extension). Names Fyxer.ai, Gmail and 4 more on its pages.

  • Plugin for: Inbox Zero Tabs (Chrome Extension)
  • Names: Fyxer.ai · Gmail · Outlook · +3
“…vs Fyxer.ai”
“Inbox Zero Mail is an open-source email client for Gmail and Outlook.”

What it offers as proof

Live, no waitlist. Shows customer logos. Claims “25,000+”. Trying it asks for an email. Publishes docs and a blog.

  • Customer logos: yes
  • Number claimed: 25,000+
  • Instant signup: yes
  • Trial asks for: an email address
“Get started free”
“Join 25,000+ professionals, including people at:”

Sources

Tablif read these pages, last on 18 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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