Posteo alternatives · Email
Posteo alternatives with an Android app
The Posteo listing does not include an Android app. 42 of the 73 other email apps in this directory list an Android app.
Posteo is a paid product, starting at €1 per month, prepaid (minimum top-up €12). 28 of them are free or have a free plan.
42 tools · Listings checked up to Nov 12, 2026 · Where the facts come from
The 12 closest to Posteo
- Free plan · from €3/mo
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.
- Free plan · from $3.99/mo
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.
- Free trial · from $4.99/mo
StartMail
Paid private email from the Netherlands with unlimited aliases
- StartMail starts at $4.99 per month, billed annually ($59.88). Posteo starts at €1 per month, prepaid (minimum top-up €12).
- Only StartMail lists an Android app.
- Posteo is open source and end-to-end encrypted, according to its own site.
- StartMail also covers inbox filtering.
- Free plan · from €2.50/mo
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.
- Free plan · from €1.50/mo
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.
- Free
Thunderbird
Free, open-source email app for Windows, macOS, Linux and Android
- Thunderbird is free. Posteo starts at €1 per month, prepaid (minimum top-up €12).
- Thunderbird has a free plan. Posteo does not.
- Only Thunderbird lists Windows, macOS, Linux and Android apps.
- Only Posteo lists a web app.
- Free plan · from $36/yr
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.
- Free plan · from $49.95/yr
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.
- Free plan · from $35.99/yr
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.
- Free plan · from $7.49 one-time
FairEmail
Open source, privacy-oriented email client for Android
- FairEmail starts at $7.49 one-time (pro features, US Google Play in-app purchase). Posteo starts at €1 per month, prepaid (minimum top-up €12).
- FairEmail has a free plan. Posteo does not.
- Only FairEmail lists an Android app.
- Only Posteo lists a web app.
- Paid
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.
- From $25/mo
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.
30 more that list an Android app
- Spark Mail
- HEY
- Microsoft Outlook
- Fastmail
- Zoho Mail
- Spike
- Newton Mail
- Inbox Zero
- Titan Email
- GMX Mail
- FlowCrypt
- Shortwave
- Missive
- Gmail
- Yahoo Mail
- Edison Mail
- Neo Mail
- SimpleLogin
- addy.io
- SaneBox
- Front
- Help Scout
- Hiver
- Clean Email
- Unroll.Me
- Boomerang
- Mailbutler
- Drag
- Zoho TeamInbox
- Cleanfox
Common questions
Which Posteo alternatives have an Android app?
Tuta Mail, Proton Mail, StartMail, Mailfence, Mailo, Thunderbird, Canary Mail, eM Client and 34 more list an Android app.
Does Posteo have an Android app?
The Posteo listing does not include an Android app. It lists Web.
Which of these email apps are free?
Tuta Mail, Proton Mail, Mailfence, Mailo, Thunderbird, Canary Mail, eM Client, BlueMail and 20 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.