Reeva vs Proton Mail
Proton Mail popularized end-to-end encrypted email for consumers. Reeva takes a different bet: build a privacy-respecting service on open standards — JMAP, IMAP, SMTP, CalDAV — so any client works natively and your data never gets trapped. Here is how the two compare.
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| Feature | Reeva | Proton Mail |
|---|---|---|
| Custom domain (paid) | ||
| JMAP native protocol — Proton uses a proprietary API; IMAP/SMTP via Bridge | — | |
| IMAP / SMTP without an extra bridge app | — | |
| Encryption in transit (TLS) | ||
| Encryption at rest | ||
| End-to-end encryption for messages between users on the platform | TLS + at-rest | E2EE |
| Encrypted calendar | ||
| Password vault | ||
| File cloud bundled with mail | ||
| Open-source mail server (Stalwart) | — | |
| Free plan | ||
| Web app | ||
| Desktop & mobile apps |
When Reeva is the better fit
- You want first-class IMAP / JMAP / SMTP without a bridge app.
- You prefer an open-source mail engine you can audit (Stalwart).
- You want a unified subscription for mail, calendar and cloud at lower entry prices.
When Proton is the better fit
- End-to-end encrypted messaging between accounts is a hard requirement.
- You want a long-established Swiss provider with a large user base.
Information about Proton Mail reflects publicly documented features at time of writing. See Proton's website for current details. We do our best to keep this comparison accurate — tell us if we got something wrong.
Reeva is an independent product and is not affiliated with, endorsed by, or sponsored by any third party mentioned on this page. All product names, logos, and brands are the property of their respective owners and are used here only for identification and comparison.