Kerna vs Xemail
Kerna
kerna.ioXemail
xemail.aiSide by side
| Figure | Kerna | Xemail |
|---|---|---|
| Price from | €12/mo | $5.83/mo |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| Plans published | 5 | 5 |
| Spec score · AI Email Writing Tools | 8.2 (#11) | 7.8 (#18) |
| Headquarters | Katowice, Poland | Hong Kong |
| Integrations | Kerna integrates with Gmail, Outlook, Calendar, Contacts and Sheets, and the pricing page lists shared mailboxes for Outlook. | The privacy policy identifies OpenAI, L.L.C. as the third-party provider for AI-generated content. |
| Intended users | Kerna describes itself as email automation for professionals and offers team plans for collaboration and larger organizations. | The website presents business, job application, and personal writing as use cases. |
| Languages | Kerna offers translation in 45 languages for inbound messages and outbound replies. | The website says its templates support over 50 language options. |
| Product | Kerna is an AI email assistant that works inside Gmail and Outlook. | Xemail is an online AI email writer and generator for drafting emails, letters, replies, and WhatsApp replies. |
| Security | The trust page reports TLS 1.2 or higher in transit and AES-256 encryption at rest in Firestore. | The privacy policy says the company uses measures to protect the integrity and security of collected personal information, while noting it cannot guarantee complete security in transmission or storage. |
Plans
Kerna
- StarterFree
- Standard€12 a month
- Pro€22 a month
- Business€69 a month
- Enterprise€499 a month
Xemail
- Xemail Credits Pack$4.99, paid once
- Monthly Access$19.99 a month
- 3 Months Access$39.99, paid once
- One Year Access$69.99 a year
- Lifetime Access$89.99, paid once
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.