| What it does | Free push notification service for iOS and Android via API or webhooks
| Free, open source email client with mail, calendar, contacts and AI
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| Stage | Not given
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| Founded | Not given
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| Based in | RS
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| Pricing model | Freemium
| Open source
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| Pricing | Free: 50 daily messages, 1 device, 1 application, 1 webhook, 1 form, 7-day webhook history. Starter: $6/month for 1,000 daily messages, 3 devices, 5 applications, 5 webhooks, 10 forms, 30-day webhook history. Medium: $12/month for 5,000 daily messages, 5 devices, 20 applications, 20 webhooks, 30 for
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| Key features | - API integration for connecting any service or script via REST API
- Notification segmentation with internal applications for categorizing alerts
- Webhook integration for services that only support webhooks
- Mobile app for iOS and Android with one unified inbox
- Priority levels from silent to critical with Do Not Disturb bypass
- Action buttons on notifications to open links, fire requests, or copy values
- Scheduled delivery up to 30 days with cancellation
- Command-line tool for macOS, Linux, and Windows
- Form builder to publish contact and feedback forms that push submissions
- Browser extension for Chrome and Edge to push links and notes to phone
| - 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
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| What makes it different | - Delivery in under a second with no SDK required
- Free plan with 50 daily notifications forever, no credit card needed
- Centralize alerts from multiple sources in one focused channel to cut noise
- MCP server integration for AI agents like Claude
- Full webhook history recording with headers, payload, and outcome for debugging
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 29 ▼ −2 (down) since last check | 11 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 3 | 2 |
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| Citation Flow (Majestic) | 20 | 28 |
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| Referring domains (Majestic) | 53 | 41 |
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