ImprovMX alternatives · Email
End-to-end encrypted alternatives to ImprovMX
The ImprovMX 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.
ImprovMX has a free plan. Paid plans start at $50 per year (Light, up to 5 domains). 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 ImprovMX
- 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). ImprovMX starts at $50 per year (Light, up to 5 domains).
- Only BlueMail lists iOS, Android, macOS, Windows and Linux apps.
- Only ImprovMX lists a web app.
- BlueMail is end-to-end encrypted, according to its own site.
- 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. ImprovMX starts at $50 per year (Light, up to 5 domains).
- Only Proton Mail lists macOS, Windows, Linux, iOS and Android apps.
- Proton Mail is open source and end-to-end encrypted, according to its own site.
- Proton Mail also covers calendar and email client.
- 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). ImprovMX starts at $50 per year (Light, up to 5 domains).
- Only Tuta Mail lists Windows, macOS, Linux, iOS and Android apps.
- Tuta Mail is open source and end-to-end encrypted, according to its own site.
- Tuta Mail also covers calendar and email client.
- 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. ImprovMX starts at $50 per year (Light, up to 5 domains).
- Only Canary Mail lists macOS, iOS, Windows and Android apps.
- Only ImprovMX lists a web app.
- Canary Mail is end-to-end encrypted, according to its own site.
- 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). ImprovMX starts at $50 per year (Light, up to 5 domains).
- ImprovMX has a free plan. mailbox does not, though it has a free trial.
- mailbox is end-to-end encrypted, according to its own site.
- mailbox also covers tasks, calendar, email client, documents, video calls and file sync.
- 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). ImprovMX starts at $50 per year (Light, up to 5 domains).
- ImprovMX has a free plan. Posteo does not.
- Posteo is open source and end-to-end encrypted, according to its own site.
- Posteo also covers notes, calendar and email client.
- 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). ImprovMX starts at $50 per year (Light, up to 5 domains).
- Only Mailfence lists iOS and Android apps.
- Mailfence is end-to-end encrypted, according to its own site.
- Mailfence also covers calendar, email client and documents.
- 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). ImprovMX starts at $50 per year (Light, up to 5 domains).
- Only FairEmail lists an Android app.
- Only ImprovMX lists a web app.
- FairEmail is open source and end-to-end encrypted, according to its own site.
- Free plan
FlowCrypt
OpenPGP encryption for Gmail, as an extension and mobile apps
- Only FlowCrypt lists iOS and Android apps.
- Only FlowCrypt lists a browser extension.
- Only ImprovMX lists a web app.
- FlowCrypt is end-to-end encrypted, according to its own site.
- Free plan · from $8/mo
CTemplar
Encrypted, anonymous email hosted in Iceland
- CTemplar starts at $8 per month. ImprovMX starts at $50 per year (Light, up to 5 domains).
- Only CTemplar lists iOS and Android apps.
- CTemplar is open source and end-to-end encrypted, according to its own site.
- CTemplar also covers email client.
- 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). ImprovMX starts at $50 per year (Light, up to 5 domains).
- Only AtomicMail lists Windows, macOS, Linux, iOS and Android apps.
- AtomicMail is end-to-end encrypted, according to its own site.
- AtomicMail also covers email client and email signature.
Common questions
Is there an end-to-end encrypted alternative to ImprovMX?
Yes. BlueMail, Proton Mail, Tuta Mail, Canary Mail, mailbox, Posteo, Mailfence, FairEmail and 3 more are end-to-end encrypted, according to their own sites.
Is ImprovMX end-to-end encrypted?
The ImprovMX listing does not describe it as end-to-end encrypted. The listing was checked on Nov 12, 2026 against the pages it cites.
Which of these email apps are free?
BlueMail, Proton Mail, Tuta Mail, Canary Mail, 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 ImprovMX: the alternatives its listing names first, then the tools that share the most features with it.