IceWarp alternatives · Email
End-to-end encrypted alternatives to IceWarp
The IceWarp listing does not describe it as end-to-end encrypted. 11 of the 125 other email apps in this directory are end-to-end encrypted, according to their own sites.
IceWarp is a paid product with a free trial, starting at $1.50 per user / month, billed monthly ($1.35 billed annually). 9 of them are free or have a free plan.
11 tools · Listings checked up to Nov 13, 2026 · Where the facts come from
How each one differs from IceWarp
- Free trial · from €1/mo
mailbox
Paid, ad-free email with cloud storage and office tools from Germany
- mailbox starts at €1 per month, annual payment only (€12 a year, Light). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Only IceWarp lists Windows, macOS, iOS and Android apps.
- mailbox is end-to-end encrypted, according to its own site.
- mailbox also covers tasks, documents and file sync.
- 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. IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Proton Mail has a free plan. IceWarp does not, though it has a free trial.
- Only Proton Mail lists a Linux app.
- Proton Mail is open source and end-to-end encrypted, according to its own site.
- 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). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Tuta Mail has a free plan. IceWarp does not, though it has a free trial.
- Only Tuta Mail lists a Linux app.
- Tuta Mail is open source and end-to-end encrypted, according to its own site.
- 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. IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Canary Mail has a free plan. IceWarp does not, though it has a free trial.
- Only IceWarp lists a web app.
- Canary Mail is end-to-end encrypted, according to its own site.
- 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). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- BlueMail has a free plan. IceWarp does not, though it has a free trial.
- Only BlueMail lists a Linux app.
- Only IceWarp lists a web app.
- From €1/mo
Posteo
Ad-free, green-powered email from Berlin for €1 a month
- Posteo starts at €1 per month, prepaid (minimum top-up €12). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Only IceWarp lists Windows, macOS, iOS and Android apps.
- Posteo is open source and end-to-end encrypted, according to its own site.
- Posteo also covers notes.
- 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). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- Mailfence has a free plan. IceWarp does not, though it has a free trial.
- Only IceWarp lists Windows and macOS apps.
- Mailfence is end-to-end encrypted, according to its own site.
- 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). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- FairEmail has a free plan. IceWarp does not, though it has a free trial.
- Only IceWarp lists a web app.
- Only IceWarp lists Windows, macOS and iOS apps.
- Free plan
FlowCrypt
OpenPGP encryption for Gmail, as an extension and mobile apps
- FlowCrypt has a free plan. IceWarp does not, though it has a free trial.
- Only FlowCrypt lists a browser extension.
- Only IceWarp lists a web app.
- Only IceWarp lists Windows and macOS apps.
- Free plan · from $8/mo
CTemplar
Encrypted, anonymous email hosted in Iceland
- CTemplar starts at $8 per month. IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- CTemplar has a free plan. IceWarp does not, though it has a free trial.
- Only IceWarp lists Windows and macOS apps.
- CTemplar is open source and end-to-end encrypted, according to its own site.
- Free plan · from $3/mo
AtomicMail
Encrypted email with a free plan and custom-domain business plans
- AtomicMail starts at $3 per user / month (Business Starter, billing basis not stated). IceWarp starts at $1.50 per user / month, billed monthly ($1.35 billed annually).
- AtomicMail has a free plan. IceWarp does not, though it has a free trial.
- Only AtomicMail lists a Linux app.
- AtomicMail is end-to-end encrypted, according to its own site.
Common questions
Is there an end-to-end encrypted alternative to IceWarp?
Yes. mailbox, Proton Mail, Tuta Mail, Canary Mail, BlueMail, Posteo, Mailfence, FairEmail and 3 more are end-to-end encrypted, according to their own sites.
Is IceWarp end-to-end encrypted?
The IceWarp listing does not describe it as end-to-end encrypted. The listing was checked on Nov 13, 2026 against the pages it cites.
Which of these email apps are free?
Proton Mail, Tuta Mail, Canary Mail, BlueMail, Mailfence, FairEmail, FlowCrypt, CTemplar and 1 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 IceWarp: the alternatives its listing names first, then the tools that share the most features with it.