Skip to content
ToolGPA

Posteo alternatives · Email

Posteo alternatives with an iPhone and iPad app

The Posteo listing does not include an iPhone and iPad app. 45 of the 73 other email apps in this directory list an iPhone and iPad app.

Posteo is a paid product, starting at €1 per month, prepaid (minimum top-up €12). 30 of them are free or have a free plan.

45 tools · Listings checked up to Nov 12, 2026 · Where the facts come from

The 12 closest to Posteo

  1. Tuta Mail

    End-to-end encrypted email and calendar from Germany

    • Tuta Mail starts at €3 per month, paid yearly (lowest paid personal plan). Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • Tuta Mail has a free plan. Posteo does not.
    • Only Tuta Mail lists Windows, macOS, Linux, iOS and Android apps.
    • Posteo also covers notes.
    Tuta Mail vs PosteoTuta Mail 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. Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • Proton Mail has a free plan. Posteo does not.
    • Only Proton Mail lists macOS, Windows, Linux, iOS and Android apps.
    • Posteo also covers notes.
    Proton Mail vs PosteoProton Mail pricing and details

  3. Mailfence

    Private email from Belgium with built-in OpenPGP encryption

    • Mailfence starts at €2.50 per month, billed yearly (Base). Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • Mailfence has a free plan. Posteo does not.
    • Only Mailfence lists iOS and Android apps.
    • Posteo is open source, according to its own site.
    Mailfence vs PosteoMailfence pricing and details

  4. Mailo

    French webmail with a free tier, ad-free paid plans and calendar

    • Mailo starts at €1.50 per month, for a 1 to 5 year term. Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • Mailo has a free plan. Posteo does not.
    • Only Mailo lists iOS and Android apps.
    • Posteo is open source and end-to-end encrypted, according to its own site.
    Mailo vs PosteoMailo pricing and details

  5. Canary Mail

    AI email client with PGP encryption for Mac, iOS, Windows, Android

    • Canary Mail starts at $36 per year (Growth), shown as $3 per month billed yearly. Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • Canary Mail has a free plan. Posteo does not.
    • Only Canary Mail lists macOS, iOS, Windows and Android apps.
    • Only Posteo lists a web app.
    Canary Mail pricing and details

  6. 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). Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • eM Client has a free plan. Posteo does not.
    • Only eM Client lists Windows, macOS, iOS and Android apps.
    • Only Posteo lists a web app.
    eM Client pricing and details

  7. 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). Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • BlueMail has a free plan. Posteo does not.
    • Only BlueMail lists iOS, Android, macOS, Windows and Linux apps.
    • Only Posteo lists a web app.
    BlueMail pricing and details

  8. Zimbra

    Self-hosted email, calendar and file sharing for organizations

    • Only Zimbra lists Windows, macOS, Linux, iOS and Android apps.
    • Zimbra is self-hostable, according to its own site.
    • Posteo is end-to-end encrypted, according to its own site.
    • Zimbra also covers tasks.
    Zimbra 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). Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • Only Superhuman Mail lists macOS, Windows, iOS and Android apps.
    • Only Superhuman Mail lists a browser extension.
    • Posteo is open source and end-to-end encrypted, according to its own site.
    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). Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • Spark Mail has a free plan. Posteo does not.
    • Only Spark Mail lists macOS, Windows, iOS and Android apps.
    • Only Posteo lists a web app.
    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). Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • Only HEY lists macOS, Windows, Linux, iOS and Android apps.
    • Posteo is open source and end-to-end encrypted, according to its own site.
    • HEY also covers templates.
    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). Posteo starts at €1 per month, prepaid (minimum top-up €12).
    • Microsoft Outlook has a free plan. Posteo does not.
    • Only Microsoft Outlook lists Windows, macOS, iOS and Android apps.
    • Posteo is open source and end-to-end encrypted, according to its own site.
    Microsoft Outlook pricing and details

33 more that list an iPhone and iPad app

All 45 in one table

Common questions

Which Posteo alternatives have an iPhone and iPad app?

Tuta Mail, Proton Mail, Mailfence, Mailo, Canary Mail, eM Client, BlueMail, Zimbra and 37 more list an iPhone and iPad app.

Does Posteo have an iPhone and iPad app?

The Posteo listing does not include an iPhone and iPad app. It lists Web.

Which of these email apps are free?

Tuta Mail, Proton Mail, Mailfence, Mailo, Canary Mail, eM Client, BlueMail, Spark Mail and 22 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 12, 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 Posteo: the alternatives its listing names first, then the tools that share the most features with it.