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Inbox Zero alternatives · Email

Inbox Zero alternatives with a Linux app

The Inbox Zero listing does not include a Linux app. 9 of the 51 other email apps in this directory list a Linux app.

Inbox Zero is a paid product with a free trial, starting at $18 per user / month, billed annually ($20 billed monthly). 7 of them are free or have a free plan.

9 tools · Listings checked up to Oct 9, 2026 · Where the facts come from

How each one differs from Inbox Zero

  1. BlueMail

    Cross-platform email client with a unified inbox and built-in AI

    • BlueMail starts at $35.99 per year (Plus, shown as $3 per month billed annually). Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly).
    • BlueMail has a free plan. Inbox Zero does not, though it has a free trial.
    • Only BlueMail lists a Linux app.
    • Only Inbox Zero lists a web app.
    BlueMail pricing and details

  2. Proton Mail

    End-to-end encrypted email service based in Switzerland

    • Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly. Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly).
    • Proton Mail has a free plan. Inbox Zero does not, though it has a free trial.
    • Only Proton Mail lists a Linux app.
    • Only Inbox Zero lists a browser extension.
    Proton Mail pricing and details

  3. Thunderbird

    Free, open-source email app for Windows, macOS, Linux and Android

    • Thunderbird is free. Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly).
    • Thunderbird has a free plan. Inbox Zero does not, though it has a free trial.
    • Only Thunderbird lists a Linux app.
    • Only Inbox Zero lists a web app.
    Thunderbird pricing and details

  4. Zoho Mail

    Ad-free business email hosting with calendar, tasks and notes

    • Zoho Mail starts at $1 per user / month, billed annually (Mail Lite, 5 GB). Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly).
    • Zoho Mail has a free plan. Inbox Zero does not, though it has a free trial.
    • Only Zoho Mail lists a Linux app.
    • Only Inbox Zero lists a browser extension.
    Zoho Mail pricing and details

  5. Tuta Mail

    End-to-end encrypted email and calendar from Germany

    • Tuta Mail starts at €3 per month, paid yearly (lowest paid personal plan). Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly).
    • Tuta Mail has a free plan. Inbox Zero does not, though it has a free trial.
    • Only Tuta Mail lists a Linux app.
    • Only Inbox Zero lists a browser extension.
    Tuta Mail pricing and details

  6. Mailspring

    Open-source desktop email client for Mac, Windows and Linux

    • Mailspring starts at $8 per month, or $85 per year (Mailspring Pro). Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly).
    • Mailspring has a free plan. Inbox Zero does not, though it has a free trial.
    • Only Mailspring lists a Linux app.
    • Only Inbox Zero lists a web app.
    Mailspring pricing and details

  7. Newton Mail

    Cross-platform email app with read receipts, snooze and send later

    • Newton Mail starts at $5 per month, billed annually ($6.99 billed monthly). Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly).
    • Newton Mail has a free plan. Inbox Zero does not, though it has a free trial.
    • Only Newton Mail lists a Linux app.
    • Only Inbox Zero lists a web app.
    Newton Mail pricing and details

  8. HEY

    Email service and calendar with sender screening, from 37signals

    • HEY starts at $99 per year (HEY for You, annual billing only). Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly).
    • Only HEY lists a Linux app.
    • Only Inbox Zero lists a browser extension.
    • Inbox Zero is open source and self-hostable, according to its own site.
    HEY pricing and details

  9. Fastmail

    Paid, ad-free email with calendar, contacts and custom domains

    • Fastmail starts at $3 per user / month, billed yearly (Basic); Individual is $5, billed yearly. Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly).
    • Only Fastmail lists a Linux app.
    • Only Inbox Zero lists a browser extension.
    • Inbox Zero is open source and self-hostable, according to its own site.
    Fastmail pricing and details

Common questions

Which Inbox Zero alternatives have a Linux app?

BlueMail, Proton Mail, Thunderbird, Zoho Mail, Tuta Mail, Mailspring, Newton Mail, HEY and 1 more list a Linux app.

Does Inbox Zero have a Linux app?

The Inbox Zero listing does not include a Linux app. It lists Web, macOS, Windows, iOS, Android and Browser extension.

Which of these email apps are free?

BlueMail, Proton Mail, Thunderbird, Zoho Mail, Tuta Mail, Mailspring and Newton Mail are free or have a free plan.

When was this checked?

Each listing shows its own date. On this page they run from Oct 4, 2026 to Oct 9, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Inbox Zero: the alternatives its listing names first, then the tools that share the most features with it.