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mailcow alternatives · Email

mailcow alternatives with a Mac app

The mailcow listing does not include a Mac app. 43 of the 125 other email apps in this directory list a Mac app.

mailcow is free to use. 26 of them are free or have a free plan.

43 tools · Listings checked up to Nov 13, 2026 · Where the facts come from

The 12 closest to mailcow

  1. Zimbra

    Self-hosted email, calendar and file sharing for organizations

    • mailcow has a free plan. Zimbra does not.
    • Only Zimbra lists Windows, macOS, Linux, iOS and Android apps.
    • Zimbra also covers tasks.
    Zimbra 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. mailcow is free.
    • Only Proton Mail lists macOS, Windows, Linux, iOS and Android apps.
    • Proton Mail is end-to-end encrypted, according to its own site.
    • mailcow is self-hostable, according to its own site.
    Proton Mail pricing and details

  3. Thunderbird

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

    • Thunderbird is free. mailcow is free.
    • Only Thunderbird lists Windows, macOS, Linux and Android apps.
    • Only mailcow lists a web app.
    • mailcow is self-hostable, according to its own site.
    Thunderbird pricing and details

  4. Tuta Mail

    End-to-end encrypted email and calendar from Germany

    • Tuta Mail starts at €3 per month, paid yearly (lowest paid personal plan). mailcow is free.
    • Only Tuta Mail lists Windows, macOS, Linux, iOS and Android apps.
    • Tuta Mail is end-to-end encrypted, according to its own site.
    • mailcow is self-hostable, according to its own site.
    Tuta Mail pricing and details

  5. Inbox Zero

    Open source AI email assistant for Gmail and Outlook

    • Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly). mailcow is free.
    • mailcow has a free plan. Inbox Zero does not, though it has a free trial.
    • Only Inbox Zero lists macOS, Windows, iOS and Android apps.
    • Only Inbox Zero lists a browser extension.
    Inbox Zero pricing and details

  6. Betterbird

    A fork of Thunderbird with extra features and bug fixes

    • Betterbird is free. mailcow is free.
    • Only Betterbird lists Windows, macOS and Linux apps.
    • Only mailcow lists a web app.
    • mailcow is self-hostable, according to its own site.
    Betterbird pricing and details

  7. MDaemon

    Email server for Windows with webmail and Outlook connector

    • mailcow has a free plan. MDaemon does not, though it has a free trial.
    • Only MDaemon lists Windows and macOS apps.
    • mailcow is open source, according to its own site.
    MDaemon pricing and details

  8. GFI KerioConnect

    Self-hosted business mail server with calendar, chat and local AI

    • mailcow has a free plan. GFI KerioConnect does not, though it has a free trial.
    • Only GFI KerioConnect lists Windows, macOS and Linux apps.
    • Only mailcow lists a web app.
    • mailcow is open source, according to its own site.
    GFI KerioConnect pricing and details

  9. Superhuman Mail

    Keyboard-driven email client for Gmail and Outlook with built-in AI

    • Superhuman Mail starts at $25 per member / month, billed annually ($30 billed monthly). mailcow is free.
    • mailcow has a free plan. Superhuman Mail does not.
    • Only Superhuman Mail lists macOS, Windows, iOS and Android apps.
    • Only Superhuman Mail lists a browser extension.
    Superhuman Mail pricing and details

  10. Spark Mail

    Email client with a unified smart inbox, AI tools and team features

    • Spark Mail starts at $8.25 per user / month, billed annually ($99 / year). mailcow is free.
    • Only Spark Mail lists macOS, Windows, iOS and Android apps.
    • Only mailcow lists a web app.
    • mailcow is open source and self-hostable, according to its own site.
    Spark Mail pricing and details

  11. HEY

    Email service and calendar with sender screening, from 37signals

    • HEY starts at $99 per year (HEY for You, annual billing only). mailcow is free.
    • mailcow has a free plan. HEY does not, though it has a free trial.
    • Only HEY lists macOS, Windows, Linux, iOS and Android apps.
    • mailcow is open source and self-hostable, according to its own site.
    HEY pricing and details

  12. Microsoft Outlook

    Microsoft's email and calendar app for desktop, mobile and web

    • Microsoft Outlook starts at $1.99 per month, or $19.99 per year (Microsoft 365 Basic). mailcow is free.
    • Only Microsoft Outlook lists Windows, macOS, iOS and Android apps.
    • mailcow is open source and self-hostable, according to its own site.
    • Microsoft Outlook also covers tasks and inbox filtering.
    Microsoft Outlook pricing and details

31 more that list a Mac app

All 43 in one table

Common questions

Which mailcow alternatives have a Mac app?

Zimbra, Proton Mail, Thunderbird, Tuta Mail, Inbox Zero, Betterbird, MDaemon, GFI KerioConnect and 35 more list a Mac app.

Does mailcow have a Mac app?

The mailcow listing does not include a Mac app. It lists Web.

Which of these email apps are free?

Proton Mail, Thunderbird, Tuta Mail, Betterbird, Spark Mail, Microsoft Outlook, Zoho Mail, Canary Mail and 18 more 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 Nov 13, 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 mailcow: the alternatives its listing names first, then the tools that share the most features with it.