| What it does | Free, open source email client with mail, calendar, contacts and AI
| AI-powered email client with unified inbox, encryption, and calendar for Mac, iPhone, Android, and Windows
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| Stage | Not given
| Established
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| Founded | Not given
| 2016
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| Based in | Not given
| Not given
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| Pricing model | Open source
| Freemium
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| Pricing | Not given
| Free plan includes unified inbox, snooze & pin, email templates, and inbox zero features. Growth plan: $36/year (or $3/month billed yearly) includes AI Copilot, read receipts, send later, calendar & scheduling, and inbox cleaner. Pro+ plan: $100/year (or $10/month billed yearly, with 2 months free)
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| Key features | - Mail over IMAP or POP3 with search by sender, date and attachments
- Calendar with CalDAV sync in day, week, month and year views
- Contacts with CardDAV sync with email, phone, company and birthday fields
- Read receipts showing Delivered, Opened or Bounced status
- AI summaries, replies and questions using your own API key
- Message and reply translation between languages
- Custom signature for each mailbox
- Built-in settings for Gmail, iCloud, Outlook, Yahoo, Fastmail, Zoho, GMX, Yandex and Proton Bridge
- Open source template for building branded mail clients
| - AI email writer that composes messages tailored to your voice
- Email thread summarization in seconds
- Automatic email categorization for distraction-free inbox
- Read receipts with instant notifications
- PGP end-to-end encryption with in-app key management
- SecureSend for encrypted messages with expiration and password protection
- Phishing detection and alerts for suspicious links
- Pixel and tracker blocking to protect privacy
- Shared inbox for team collaboration and real-time updates
- Email assignments with clear ownership and AI routing
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| What makes it different | - Free and open source under MIT licence with no restrictions on use, modification or resale
- Works with any IMAP or POP3 mailbox including Gmail, iCloud, Outlook and others
- Calendar and contacts integrated in the same window with mail
- Bring your own AI from Anthropic, OpenAI, Google, xAI or Perplexity
- Build your own branded desktop app by customising the open source template
| - AI-powered inbox management that identifies important emails and drafts replies automatically
- Privacy-first design with end-to-end encryption built-in by default
- Enterprise-grade security for both work and personal email accounts client-side
- Unified inbox for unlimited email accounts across Gmail, Outlook, iCloud, IMAP, and Exchange
- Cross-platform synchronization across Mac, iPhone, iPad, Windows, and Android
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 11 ▼ −1 (down) since last check | 70 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 21 |
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| Citation Flow (Majestic) | 28 | 41 |
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| Referring domains (Majestic) | 41 | 1171 |
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