Proton Mail alternatives

How each one differs from Proton Mail

1. 

   HEY

   Email service and calendar with sender screening, from 37signals

   Free trial · from $99/yr
   • HEY starts at $99 per year (HEY for You, annual billing only). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
   • Proton Mail has a free plan. HEY does not, though it has a free trial.
   • Proton Mail is open source and end-to-end encrypted, according to its own site.
   • HEY also covers templates.

   Suits: People ready to move to a new email address and a different inbox routine

   HEY vs Proton MailHEY pricing and details
2. 

   Spark Mail

   Email client with a unified smart inbox, AI tools and team features

   Free plan · from $8.25/mo
   • Spark Mail starts at $8.25 per user / month, billed annually ($99 / year). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
   • Only Proton Mail lists a web app.
   • Only Proton Mail lists a Linux app.
   • Proton Mail is open source and end-to-end encrypted, according to its own site.
   • Spark Mail also covers meeting notes, templates and shared inbox.

   Suits: People juggling several email accounts across desktop and phone

   Spark Mail vs Proton MailSpark Mail pricing and details
3. 

   Superhuman Mail

   Keyboard-driven email client for Gmail and Outlook with built-in AI

   From $25/mo
   • Superhuman Mail starts at $25 per member / month, billed annually ($30 billed monthly). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
   • Proton Mail has a free plan. Superhuman Mail does not.
   • Only Superhuman Mail lists a browser extension.
   • Only Proton Mail lists a Linux app.
   • Proton Mail is open source and end-to-end encrypted, according to its own site.

   Suits: People on Gmail or Outlook who work through a high volume of email

   Superhuman Mail vs Proton MailSuperhuman Mail pricing and details
4. 

   Shortwave

   AI email client for Gmail with an assistant, filters and split inbox

   Free plan · from $18/mo
   • Shortwave starts at $18 per seat / month (Pro, the individual plan). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
   • Only Proton Mail lists a Linux app.
   • Proton Mail is open source and end-to-end encrypted, according to its own site.
   • Shortwave also covers chat assistant, AI search and templates.
   • Proton Mail also covers calendar.

   Suits: Gmail and Google Workspace users who want AI to triage and draft email

   Shortwave vs Proton MailShortwave pricing and details
5. 

   Fastmail

   Paid, ad-free email with calendar, contacts and custom domains

   Free trial · from $3/mo
   • Fastmail starts at $3 per user / month, billed yearly (Basic); Individual is $5, billed yearly. Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
   • Proton Mail has a free plan. Fastmail does not, though it has a free trial.
   • Proton Mail is open source and end-to-end encrypted, according to its own site.

   Suits: People leaving free, ad-funded email for a paid private service

   Fastmail vs Proton MailFastmail pricing and details
6. 

   Gmail

   Google's email service, free for personal use with 15 GB of storage

   Free plan · from $7/mo
   • Gmail starts at $7 per user / month with a 1-year commitment (Workspace Business Starter). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
   • Only Proton Mail lists macOS, Windows and Linux apps.
   • Proton Mail is open source and end-to-end encrypted, according to its own site.
   • Gmail also covers inbox filtering.
   • Proton Mail also covers calendar.

   Suits: Anyone who wants a free personal address with 15 GB of shared storage

   Gmail vs Proton MailGmail pricing and details
7. 

   mailbox

   Paid, ad-free email with cloud storage and office tools from Germany

   Free trial · from €1/mo
   • mailbox starts at €1 per month, annual payment only (€12 a year, Light). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
   • Proton Mail has a free plan. mailbox does not, though it has a free trial.
   • Only Proton Mail lists macOS, Windows, Linux, iOS and Android apps.
   • Proton Mail is open source, according to its own site.
   • mailbox also covers tasks, documents, video calls and file sync.

   Suits: People who want paid, ad-free email hosted in Germany

   mailbox vs Proton Mailmailbox pricing and details
8. 

   Mailfence

   Private email from Belgium with built-in OpenPGP encryption

   Free plan · from €2.50/mo
   • Mailfence starts at €2.50 per month, billed yearly (Base). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
   • Only Proton Mail lists macOS, Windows and Linux apps.
   • Proton Mail is open source, according to its own site.
   • Mailfence also covers documents.

   Suits: People who want OpenPGP encryption without installing a plug-in

   Mailfence vs Proton MailMailfence pricing and details
9. 

   Posteo

   Ad-free, green-powered email from Berlin for €1 a month

   From €1/mo
   • Posteo starts at €1 per month, prepaid (minimum top-up €12). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
   • Proton Mail has a free plan. Posteo does not.
   • Only Proton Mail lists macOS, Windows, Linux, iOS and Android apps.
   • Posteo also covers notes.

   Suits: People who want a low-cost, ad-free mailbox they pay for directly

   Posteo vs Proton MailPosteo pricing and details
10. 

    StartMail

    Paid private email from the Netherlands with unlimited aliases

    Free trial · from $4.99/mo
    • StartMail starts at $4.99 per month, billed annually ($59.88). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
    • Proton Mail has a free plan. StartMail does not, though it has a free trial.
    • Only Proton Mail lists macOS, Windows, Linux and iOS apps.
    • Proton Mail is open source and end-to-end encrypted, according to its own site.
    • StartMail also covers inbox filtering.

    Suits: People who want a paid, ad-free mailbox hosted in the Netherlands

    StartMail vs Proton MailStartMail pricing and details
11. 

    Tuta Mail

    End-to-end encrypted email and calendar from Germany

    Free plan · from €3/mo
    • Tuta Mail starts at €3 per month, paid yearly (lowest paid personal plan). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.

    Suits: People who want mail, calendar and contacts encrypted by default

    Tuta Mail vs Proton MailTuta Mail pricing and details
12. 

    Yahoo Mail

    Free email service with 20 GB of storage and AI inbox tools

    Free plan · from $5/mo
    • Yahoo Mail starts at $5 per month (Yahoo Mail Plus). Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
    • Only Proton Mail lists macOS, Windows and Linux apps.
    • Proton Mail is open source and end-to-end encrypted, according to its own site.
    • Yahoo Mail also covers tasks and inbox filtering.
    • Proton Mail also covers calendar.

    Suits: People who want a free address with 20 GB of storage

    Yahoo Mail vs Proton MailYahoo Mail pricing and details

Limits worth knowing in Proton Mail