# Mailspring vs Superhuman

**Leader by Vioscale score:** Superhuman

| Attribute | Mailspring | Superhuman |
|---|---|---|
| **Vioscale score** | 66.3 (29% (low)) | 72.1 (61% (medium)) |
| activity.commits_last_30d | 38 | - |
| adoption.github_stars | 17,762 | - |
| deployment.options | - | `{"cloud":true}` |
| description.long | A lightweight desktop application for Mac, Windows, and Linux that brings together multiple email accounts from different providers into one unified inbox. Core features run locally on your computer, with optional paid features for message tracking, scheduling, and productivity analytics. | Superhuman combines email management, collaborative documentation, and AI-powered contextual assistance into a unified platform. It helps teams and individuals handle communications, planning, and document workflows more efficiently by bringing AI capabilities directly into the apps they already use. |
| features.capabilities | `{"pricing_model":"freemium","deployment_model":"local_direct_imap_client","read_receipts_and_open_tracking":true,"snooze_and_scheduled_send_later":true,"unified_multi_account_inbox_view":true,"universal_imap_smtp_exchange_support":true}` | - |
| integrations.count | 7 | 800 |
| integrations.list | `[{"name":"Gmail"},{"name":"iCloud"},{"name":"Office 365"},{"name":"FastMail"},{"name":"Outlook.com"},{"name":"Yahoo!"},{"name":"IMAP"},{"name":"SMTP"}]` | `[{"name":"Asana"},{"name":"Ashby"},{"name":"ClickUp"},{"name":"Commerce Layer"},{"name":"DeepL"},{"name":"Demio"},{"name":"Figma"},{"name":"GitHub"},{"name":"Gong"},{"name":"Google Analytics"},{"name":"Google Calendar"},{"name":"Google Meet"},{"name":"Google Translate"},{"name":"Google Workspace Directory"},{"name":"HeyGen"},{"name":"HubSpot"},{"name":"Jira"},{"name":"Mermaid"},{"name":"Miro"},{"name":"Microsoft Outlook"},{"name":"Microsoft Teams"},{"name":"Outreach"},{"name":"Pipedrive"},{"name":"Salesforce"},{"name":"Slack"},{"name":"Typeform"},{"name":"Unsplash"},{"name":"UPS"},{"name":"Zapier"},{"name":"Zoom"}]` |
| language.primary | JavaScript | - |
| license.spdx | GPL-3.0 | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":["GB","US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"mac":true,"linux":true,"windows":true}` | `{"ios":true,"mac":true,"web":true,"android":true}` |
| pricing | `{"type":"freemium","plans":[{"free":true,"name":"Free","features":["Multi-account support","Unified inbox","Snooze","Send later","Mail rules","Templates","Grammar and spell checking","Translation support","Follow-up reminders"],"description":"Multi-account email client with unified inbox, local sync, and productivity features","contactSales":false},{"free":false,"name":"Pro","summary":"$8/month","features":["Read receipts","Link tracking","Unlimited snooze and send later","Mailbox analytics","Contact and company profiles"],"components":[{"kind":"fixed","amount":8,"period":"month","currency":"USD"}],"description":"Adds message tracking and unlimited scheduling features","contactSales":false}],"summary":"Free tier available; Pro at $8/month","currency":"USD","freeTier":true,"sourceUrl":"https://getmailspring.com","retrievedAt":"2026-08-21T12:46:43.649Z","startingPrice":{"amount":8,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"subscription","plans":[{"free":true,"name":"Free","summary":"Free","features":["Chat with AI in all applications and tabs","Writing assistance in 20+ languages","Tone and voice adaptation","Collaborative docs with tables, charts, Kanban boards, forms","Doc automation with formulas"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"GBP"}],"contactSales":false},{"free":false,"name":"Pro","summary":"£10/member/month (annual) or £12/member/month (monthly)","features":["Unlimited paragraph rewrites and translations (15+ languages)","AI-generated text detection and plagiarism checking","Brand voice consistency enforcement"],"components":[{"kind":"per_unit","unit":"member","amount":10,"period":"month","currency":"GBP"}],"contactSales":false},{"free":false,"name":"Business","summary":"£28–£33/member/month (exact amount depends on billing frequency)","features":["AI-powered inbox organization and smart replies","Personalized email drafts","CRM integrations (HubSpot, Salesforce, Pipedrive read-only)","Unlimited doc automations and version history","Data sync from Jira, GitHub, Figma into docs"],"contactSales":false},{"free":false,"name":"Enterprise","summary":"Custom pricing. Contact sales for details.","features":["Team analytics and reporting","Advanced security and admin controls","SAML single sign-on","Custom roles and permissions","Data loss prevention","Bring-your-own-key encryption","Dedicated support team"],"contactSales":true}],"summary":"From £10/member/month. Free tier available.","currency":"GBP","freeTier":true,"sourceUrl":"https://superhuman.com/plans","retrievedAt":"2026-08-19T09:03:52.135Z","startingPrice":{"unit":"member","amount":10,"period":"month","currency":"GBP"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | low | low |
| pricing.starting_price | `{"amount":8,"currency":"USD"}` | `{"amount":10,"currency":"GBP"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | 15 | - |
| release.history | `[{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.23.0","date":"2026-07-22T03:45:22Z","type":"stable","version":"1.23.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.22.0","date":"2026-06-13T20:30:13Z","type":"stable","version":"1.22.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.21.1","date":"2026-05-20T20:31:26Z","type":"stable","version":"1.21.1"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.21.0","date":"2026-05-06T13:40:43Z","type":"stable","version":"1.21.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.20.1","date":"2026-04-20T16:07:46Z","type":"stable","version":"1.20.1"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.20.0","date":"2026-04-19T03:40:03Z","type":"stable","version":"1.20.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.19.1","date":"2026-04-07T01:34:03Z","type":"stable","version":"1.19.1"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.19.0","date":"2026-03-10T04:46:53Z","type":"stable","version":"1.19.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.18.0","date":"2026-02-23T14:40:58Z","type":"stable","version":"1.18.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.17.4","date":"2026-02-11T16:59:03Z","type":"stable","version":"1.17.4"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.17.3","date":"2026-01-31T20:21:11Z","type":"stable","version":"1.17.3"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.17.2","date":"2026-01-24T21:09:28Z","type":"stable","version":"1.17.2"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.17.1","date":"2026-01-15T20:55:25Z","type":"stable","version":"1.17.1"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.17.0","date":"2026-01-14T22:33:16Z","type":"stable","version":"1.17.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.16.0","date":"2025-07-16T14:29:44Z","type":"stable","version":"1.16.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.15.1","date":"2025-01-27T00:52:05Z","type":"stable","version":"1.15.1"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.15.0","date":"2025-01-02T15:25:00Z","type":"stable","version":"1.15.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.14.0","date":"2024-09-15T00:35:52Z","type":"stable","version":"1.14.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.13.3","date":"2024-01-08T19:59:00Z","type":"stable","version":"1.13.3"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.13.2","date":"2023-12-11T02:31:01Z","type":"stable","version":"1.13.2"}]` | - |
| reliability.status_page | - | yes |
| security.hipaa | - | yes |
| security.soc2 | - | yes |

## Capabilities (Email Clients)

| Capability | Mailspring | Superhuman |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Deployment model | Local direct imap client | - |
| 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 2026-09-01T16:35:25.001Z. "-" = undocumented, not absent.*