# Mailspring vs Superhuman

**Leader by vioscaleAI score:** Superhuman

| Attribute | Mailspring | Superhuman |
|---|---|---|
| **vioscaleAI score** | 58.5 (65% (medium)) | 70.3 (73% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.github_stars | 17,885 | - |
| content.faq | `[{"answer":"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. It is indexed under Email Clients.","source":"https://getmailspring.com","question":"What is Mailspring?","confidence":0.6},{"answer":"Mailspring is open source, so it can be self-hosted and used at no licence cost. It is released under the GPL-3.0 licence. A commercial or hosted edition starts at $8 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://getmailspring.com","question":"Is Mailspring free to use?","confidence":0.6},{"answer":"Mailspring supports Windows, macOS and Linux. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://getmailspring.com","question":"What platforms does Mailspring support?","confidence":0.6},{"answer":"We have confirmed 8 integrations for Mailspring, including Gmail, iCloud, Office 365, FastMail, Outlook.com, Yahoo!, IMAP and SMTP. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://getmailspring.com","question":"What does Mailspring integrate with?","confidence":0.6},{"answer":"Yes. Mailspring is published under the GPL-3.0 licence, a copyleft licence, so check its terms before embedding it in a closed-source product. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/foundry376/Mailspring","question":"Is Mailspring open source?","confidence":0.95}]` | `[{"answer":"A productivity suite combining a fast email client, collaborative documents with built-in AI, and a proactive AI agent that integrates across web apps and tools you already use. It is indexed under Email Clients.","source":"https://superhuman.com/plans","question":"What is Superhuman?","confidence":0.6},{"answer":"Superhuman offers a free tier, so you can start without paying. Paid plans start at £10 per member per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://superhuman.com/plans","question":"Is Superhuman free?","confidence":0.6},{"answer":"Superhuman supports the web, macOS, iOS and Android. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://superhuman.com/plans","question":"What platforms does Superhuman support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Superhuman, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://superhuman.com/plans","question":"Can Superhuman be self-hosted?","confidence":0.6},{"answer":"We have confirmed 51 integrations for Superhuman, including Asana, Ashby, ClickUp, Commerce Layer, DeepL, Demio, Figma and GitHub, plus 43 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://superhuman.com/plans","question":"What does Superhuman integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2 and HIPAA for Superhuman. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Superhuman not holding them. Always confirm compliance directly before you rely on it.","source":"https://superhuman.com/plans","question":"What security certifications does Superhuman have?","confidence":0.6},{"answer":"Superhuman is available worldwide. Its primary markets are the United Kingdom and the United States.","source":"https://superhuman.com/plans","question":"Where is Superhuman available?","confidence":0.5}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true}` |
| description.long | Mailspring is a desktop email client built as open source that runs your sync engine locally without sending credentials to remote servers. It includes core features like unified inbox, snooze, scheduled sending, and mail rules, with optional premium capabilities available through a paid subscription. | A productivity suite combining a fast email client, collaborative documents with built-in AI, and a proactive AI agent that integrates across web apps and tools you 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}` | `{"soc2_type_ii":true,"pricing_model":"freemium","read_receipts_and_open_tracking":true,"snooze_and_scheduled_send_later":true,"generative_ai_llm_email_drafting":true,"unified_multi_account_inbox_view":true,"split_inbox_ai_auto_categorization":true,"universal_imap_smtp_exchange_support":true}` |
| integrations.count | 7 | 45 |
| 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"},{"name":"Microsoft Dynamics 365","native":true,"category":"crm","direction":"bidirectional"},{"name":"Gmail","native":true,"category":"email","direction":"bidirectional"},{"name":"Outlook","native":true,"category":"email","direction":"bidirectional"},{"name":"Outlook Calendar","native":true,"category":"calendar","direction":"bidirectional"},{"name":"Google Contacts","native":true,"category":"crm","direction":"bidirectional"},{"name":"Outlook Contacts","native":true,"category":"crm","direction":"bidirectional"},{"name":"Google Drive","native":true,"category":"storage","direction":"bidirectional"},{"name":"Dropbox","native":true,"category":"storage","direction":"bidirectional"},{"name":"Box","native":true,"category":"storage","direction":"bidirectional"},{"name":"Confluence","native":true,"category":"project_management","direction":"bidirectional"},{"name":"Monday.com","native":true,"category":"project_management","direction":"bidirectional"},{"name":"Linear","native":true,"category":"project_management","direction":"bidirectional"},{"name":"Canva","native":true,"category":"design","direction":"bidirectional"},{"name":"Notion","native":true,"category":"collaboration","direction":"bidirectional"},{"name":"Intercom","native":true,"category":"customer_support","direction":"bidirectional"},{"name":"QuickBooks","native":true,"category":"accounting","direction":"bidirectional"},{"name":"Fathom","native":true,"category":"meeting_notes","direction":"inbound"},{"name":"Notta","native":true,"category":"meeting_notes","direction":"inbound"},{"name":"Claude","native":true,"category":"ai","direction":"bidirectional"},{"name":"ChatGPT","native":true,"category":"ai","direction":"bidirectional"},{"name":"Cursor","native":true,"category":"dev_tools","direction":"bidirectional"},{"name":"Perplexity","native":true,"category":"search","direction":"outbound"},{"name":"Toggl","native":true,"category":"time_tracking","direction":"bidirectional"},{"name":"GitLab","native":true,"category":"development","direction":"bidirectional"},{"name":"OnePageCRM","native":true,"category":"crm","direction":"bidirectional"},{"name":"Typedesk","native":true,"category":"snippets","direction":"inbound"},{"name":"Microsoft Forms","native":true,"category":"forms","direction":"bidirectional"}]` |
| language.primary | TypeScript | - |
| 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}` | `{"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Free","features":["Unified Inbox","Snooze","Send Later","Mail Rules","Templates"],"description":"Open source version with core email features","contactSales":false},{"free":false,"name":"Mailspring Pro","features":["Link tracking","Read receipts","Mailbox analytics","Contact profiles","Company profiles"],"commitment":"monthly","description":"Premium subscription unlocking additional features","contactSales":false}],"summary":"Free open source core + monthly paid Pro tier","freeTier":true,"sourceUrl":"https://getmailspring.com","retrievedAt":"2026-10-05T10:08:40.523Z","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 | freemium | freemium |
| pricing.price_level | low | low |
| pricing.starting_price | `{"amount":8,"currency":"USD"}` | `{"amount":10,"currency":"GBP"}` |
| pricing.transparent | no | yes |
| release.cadence_days | 12 | - |
| release.history | `[{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.26.0","date":"2026-10-02T14:37:36Z","type":"stable","version":"1.26.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.25.0","date":"2026-09-19T22:57:29Z","type":"stable","version":"1.25.0"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.24.1","date":"2026-09-15T02:13:24Z","type":"stable","version":"1.24.1"},{"url":"https://github.com/Foundry376/Mailspring/releases/tag/1.24.0","date":"2026-09-13T01:27:57Z","type":"stable","version":"1.24.0"},{"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"}]` | - |
| reliability.status_page | - | yes |
| security.certifications | - | `[{"name":"SOC 2 Type II","level":"Type II","status":"active"}]` |
| 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 | Freemium |

*Source: vioscaleAI. Generated 2026-10-16T20:06:23.705Z. "-" = undocumented, not absent.*