# Mimestream vs Proton Mail

| Attribute | Mimestream | Proton Mail |
|---|---|---|
| **Vioscale score** | 63.2 (26% (low)) | 50.2 (76% (high)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | 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. | 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. |
| features.capabilities | - | `{"iso_27001":true,"soc2_type_ii":false,"pricing_model":"freemium","deployment_model":"cloud_synchronization_proxy","conversational_chat_layout_view":false,"read_receipts_and_open_tracking":false,"snooze_and_scheduled_send_later":true,"generative_ai_llm_email_drafting":false,"unified_multi_account_inbox_view":true,"pgp_end_to_end_encryption_support":true,"split_inbox_ai_auto_categorization":false,"universal_imap_smtp_exchange_support":true,"keyboard_shortcut_only_navigation_speed":false}` |
| integrations.count | 3 | 11 |
| integrations.list | `[{"name":"Gmail API"},{"name":"Google Calendar"},{"name":"Apple Calendar"}]` | `[{"name":"Gmail"},{"name":"Outlook"},{"name":"Yahoo"},{"name":"Apple Mail"},{"name":"Thunderbird"},{"name":"Google"},{"name":"Okta"},{"name":"Microsoft Entra ID"},{"name":"ADFS"},{"name":"Edugain"},{"name":"SimpleLogin"}]` |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"hqCountry":"CH","primaryMarkets":["EU","US","GB"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"mac":true}` | `{"cli":true,"ios":true,"mac":true,"web":true,"linux":true,"android":true,"windows":true}` |
| pricing | `{"type":"subscription","plans":[{"free":false,"name":"Individual","summary":"$4.99/month or $49.99/year with family sharing","features":["Gmail label management with color coding","Server-side filter management","Quick calendar invitation responses","Full Gmail search functionality","Vacation responder configuration","Multiple Gmail account support","Per-account color assignment","Inline mention functionality","macOS UI integration","Family sharing across up to 5 devices"],"components":[{"kind":"fixed","amount":49.99,"period":"year","currency":"USD"},{"kind":"fixed","amount":4.99,"period":"month","currency":"USD"}],"description":"For individual users with family sharing support","contactSales":false},{"free":false,"name":"Team","summary":"Contact sales for custom pricing","features":["All Individual plan features","Centralized billing administration","Team seat management tools"],"minSeats":51,"description":"For organizations with more than 50 seats","contactSales":true}],"summary":"From $4.99/month or $49.99/year. 14-day free trial without credit card.","currency":"USD","freeTier":false,"sourceUrl":"https://mimestream.com/pricing","retrievedAt":"2026-08-20T12:47:29.793Z","freeTrialDays":14,"startingPrice":{"amount":4.99,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` | `{"type":"freemium","plans":[{"free":false,"name":"Essential","features":["Unlimited logins, notes, and credit cards","Browser, mobile, and desktop apps","Secure vault, item and link sharing","Built-in 2FA authenticator","Dark Web Monitoring","Passkey support on all devices","Unlimited hide-my-email aliases"],"description":"Account protection for small teams","contactSales":false,"includedLimits":{"notes":"unlimited","logins":"unlimited","credit_cards":"unlimited","hide_my_email_aliases":"unlimited"}},{"free":false,"name":"Plus","features":["SSO and SCIM","Access to Proton Sentinel","File storage up to 100 MB","SIEM integration","Command line interface (CLI)","Group management for organizing users"],"description":"Advanced account protection with admin controls","contactSales":false,"includedLimits":{"file_storage":"100 MB"}},{"free":false,"name":"Workspace Standard","features":["1 TB storage per user","15 custom email domains","Secure personal and shared calendar","Cloud storage and sharing","User permissions and access management","VPN connection for 10 devices per user"],"description":"Password manager with storage and team collaboration","contactSales":false,"includedLimits":{"vpn_devices":"10","storage_per_user":"1 TB","custom_email_domains":"15"}}],"addOns":[{"name":"Dedicated server and IP"}],"currency":"USD","freeTier":true,"sourceUrl":"https://proton.me/business/pass/pricing","retrievedAt":"2026-08-25T12:07:33.063Z","freeTrialDays":14,"billingPeriods":["month","year"]}` |
| pricing.free_tier | no | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | low | low |
| pricing.starting_price | `{"amount":4.99,"currency":"USD"}` | - |
| pricing.transparent | yes | no |
| reliability.sla_pct | - | 99.95 |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.iso27001 | - | yes |
| security.pci | - | yes |

## Capabilities (Email Clients)

| Capability | Mimestream | Proton Mail |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Deployment model | - | Cloud synchronization proxy |
| Universal imap smtp exchange support | - | ✓ |
| Keyboard shortcut only navigation speed | - | ✗ |
| Split inbox AI auto categorization | - | ✗ |
| Read receipts and open tracking | - | ✗ |
| Snooze and scheduled send later | - | ✓ |
| Generative AI LLM email drafting | - | ✗ |
| Conversational chat layout view | - | ✗ |
| Unified multi account inbox view | - | ✓ |
| Pgp end to end encryption support | - | ✓ |
| SOC2 type ii | - | ✗ |
| ISO 27001 | - | ✓ |
| Pricing model | - | Freemium |

*Source: Vioscale. Generated 2026-09-01T17:10:15.307Z. "-" = undocumented, not absent.*