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Thunderbird alternatives · Email

Thunderbird alternatives with an iPhone and iPad app

The Thunderbird listing does not include an iPhone and iPad app. 35 of the 51 other email apps in this directory list an iPhone and iPad app.

Thunderbird is free to use. 24 of them are free or have a free plan.

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

The 12 closest to Thunderbird

  1. 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). Thunderbird is free.
    • Only Microsoft Outlook lists a web app.
    • Only Microsoft Outlook lists an iOS app.
    • Only Thunderbird lists a Linux app.
    Microsoft Outlook vs ThunderbirdMicrosoft Outlook pricing and details

  2. eM Client

    Desktop email client for Windows and Mac with calendar and chat

    • eM Client starts at $49.95 per year (Personal subscription, up to 3 devices). Thunderbird is free.
    • Only eM Client lists an iOS app.
    • Only Thunderbird lists a Linux app.
    • eM Client can be bought with a one-time purchase.
    eM Client vs ThunderbirdeM Client pricing and details

  3. Apple Mail

    Free built-in email app for iPhone, iPad and Mac

    • Apple Mail starts at $0.99 per month (iCloud+ with 50 GB). Thunderbird is free.
    • Only Apple Mail lists a web app.
    • Only Apple Mail lists an iOS app.
    • Only Thunderbird lists Windows, Linux and Android apps.
    Apple Mail vs ThunderbirdApple Mail pricing and details

  4. 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). Thunderbird is free.
    • Only BlueMail lists an iOS app.
    • BlueMail is end-to-end encrypted, according to its own site.
    • Thunderbird is open source, according to its own site.
    BlueMail vs ThunderbirdBlueMail pricing and details

  5. 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. Thunderbird is free.
    • Only Proton Mail lists a web app.
    • Only Proton Mail lists an iOS app.
    • Proton Mail is end-to-end encrypted, according to its own site.
    Proton Mail pricing and details

  6. 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). Thunderbird is free.
    • Only Zoho Mail lists a web app.
    • Only Zoho Mail lists an iOS app.
    • Thunderbird is open source, according to its own site.
    Zoho Mail pricing and details

  7. Tuta Mail

    End-to-end encrypted email and calendar from Germany

    • Tuta Mail starts at €3 per month, paid yearly (lowest paid personal plan). Thunderbird is free.
    • Only Tuta Mail lists a web app.
    • Only Tuta Mail lists an iOS app.
    • Tuta Mail is end-to-end encrypted, according to its own site.
    Tuta Mail pricing and details

  8. Spike

    Chat-style email app with team chat, notes, tasks and video calls

    • Spike starts at $4 per member / month, billed annually (Teamspace Team); Email App Pro is $6. Thunderbird is free.
    • Only Spike lists a web app.
    • Only Spike lists an iOS app.
    • Only Thunderbird lists a Linux app.
    Spike 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). Thunderbird is free.
    • Thunderbird has a free plan. Superhuman Mail does not.
    • Only Superhuman Mail lists a web app.
    • Only Superhuman Mail lists an iOS app.
    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). Thunderbird is free.
    • Only Spark Mail lists an iOS app.
    • Only Thunderbird lists a Linux app.
    • Thunderbird is open source, according to its own site.
    Spark Mail pricing and details

  11. Missive

    Team email client with shared inboxes, internal chat and rules

    • Missive starts at $14 per user / month, billed yearly ($18 billed monthly). Thunderbird is free.
    • Thunderbird has a free plan. Missive does not, though it has a free trial.
    • Only Missive lists a web app.
    • Only Missive lists an iOS app.
    Missive pricing and details

  12. HEY

    Email service and calendar with sender screening, from 37signals

    • HEY starts at $99 per year (HEY for You, annual billing only). Thunderbird is free.
    • Thunderbird has a free plan. HEY does not, though it has a free trial.
    • Only HEY lists a web app.
    • Only HEY lists an iOS app.
    HEY pricing and details

23 more that list an iPhone and iPad app

All 35 in one table

Common questions

Which Thunderbird alternatives have an iPhone and iPad app?

Microsoft Outlook, eM Client, Apple Mail, BlueMail, Proton Mail, Zoho Mail, Tuta Mail, Spike and 27 more list an iPhone and iPad app.

Does Thunderbird have an iPhone and iPad app?

The Thunderbird listing does not include an iPhone and iPad app. It lists macOS, Windows, Linux and Android.

Which of these email apps are free?

Microsoft Outlook, eM Client, Apple Mail, BlueMail, Proton Mail, Zoho Mail, Tuta Mail, Spike and 16 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 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 Thunderbird: the alternatives its listing names first, then the tools that share the most features with it.