Mimestream vs Proton Mail
No leader: the top candidate Mimestream has only 0.26 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for email clients. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Mimestream
A desktop email application designed for macOS that establishes direct connections to Gmail through its API, combining operating system capabilities with Gmail's functionality. It prioritizes privacy by storing all data and authentication tokens locally on your device rather than routing through intermediary services.
Proton Mail
An email platform that uses end-to-end encryption to protect message contents from server access. Funded by subscribers rather than data exploitation, it provides privacy-focused communication for individuals and businesses with features like password-protected emails, alias generation, and team management tools.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Mimestream
From $4.99/month or $49.99/year. 14-day free trial without credit card.
- Individual$4.99/month or $49.99/year with family sharing
- Gmail label management with color coding
- Server-side filter management
- Quick calendar invitation responses
- Full Gmail search functionality
- Vacation responder configuration
- +5 more
- TeamContact sales
- All Individual plan features
- Centralized billing administration
- Team seat management tools
Proton Mail
- Essential-
- Unlimited logins, notes, and credit cards
- Browser, mobile, and desktop apps
- Secure vault, item and link sharing
- Built-in 2FA authenticator
- Dark Web Monitoring
- +2 more
- Plus-
- SSO and SCIM
- Access to Proton Sentinel
- File storage up to 100 MB
- SIEM integration
- Command line interface (CLI)
- +1 more
- Workspace Standard-
- 1 TB storage per user
- 15 custom email domains
- Secure personal and shared calendar
- Cloud storage and sharing
- User permissions and access management
- +1 more
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
Mimestream
- Gmail API
- Google Calendar
- Apple Calendar
Proton Mail
- Gmail
- Outlook
- Yahoo
- Apple Mail
- Thunderbird
- Okta
- Microsoft Entra ID
- ADFS
- Edugain
- SimpleLogin
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.