Kerna vs MailCopilot
Kerna
kerna.io
MailCopilot
mailcopilot.ioSide by side
| Figure | Kerna | MailCopilot |
|---|---|---|
| Price from | €12/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| Plans published | 5 | 1 |
| Spec score · AI Email Assistants | 8.3 (#11) | 8.2 (#13) |
| Integrations | Kerna integrates with Gmail, Outlook, Calendar, Contacts and Sheets, and the pricing page lists shared mailboxes for Outlook. | MailCopilot supports MCP client connections to tools such as Obsidian, task managers, and calendars, and can expose email tools to external agents. |
| Product | Kerna is an AI email assistant that works inside Gmail and Outlook. | MailCopilot is an AI-native desktop email client for managing email. |
| Security | The trust page reports TLS 1.2 or higher in transit and AES-256 encryption at rest in Firestore. | The site says credentials are secured through the OS keychain, HTML email is sandboxed and sanitized, and TLS certificate pinning is supported. |
Plans
Kerna
- StarterFree
- Standard€12 a month
- Pro€22 a month
- Business€69 a month
- Enterprise€499 a month
In their own words
Kerna
Kerna is an AI email assistant for Gmail and Outlook on macOS, Windows, and the web. At a user’s request, it sorts open messages into categories such as Urgent, Respond, Invoice, Waiting, and Notification; users can also set custom categories and industry taxonomies. It drafts replies based on the full thread, with controls for intent and tone, and makes structured thread summaries for conversations of up to 50 messages. It can summarize attachments, extract selected fields into exportable tables, and translate inbound messages and outbound replies in 45 languages. Integrations include Calendar, Contacts, and Sheets as well as Gmail and Outlook. Kerna says it acts only when a user initiates a request, processes content in memory, discards it afterward, and redacts personal data before it reaches the inference provider. Its trust information reports TLS 1.2 or higher in transit and AES-256 encryption at rest. Kerna has a free plan; paid plans start at €12/mo. Outlook requires a Microsoft-hosted mailbox; POP or IMAP and on-premises Exchange are unsupported.
MailCopilot
MailCopilot has no write-up on Specifiction yet; its figures are above.