| What it does | Push notifications as an API
| Free, open source email client with mail, calendar, contacts and AI
|
|---|
| Stage | Not given
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | Not given
| Not given
|
|---|
| Pricing model | Freemium
| Open source
|
|---|
| Pricing | Free: $0/month with 2 applications, 100 subscribers, 1,000 notifications per month, 25,000 deliveries per month, 100 scheduled notifications, 3 team members, 5 API keys. Pro: $29/month (billed monthly, cancel anytime) with 25 applications, unlimited subscribers, 250,000 notifications per month, 2,50
| Not given
|
|---|
| Key features | - One-request API for sending notifications to all subscribers, channels, or individual users
- QR code subscription model with no account or personal data collection
- Idempotent retries to ensure notifications are never delivered twice
- Channel-based targeting for segmented notifications
- No SDK, device tokens, or push certificates required
| - 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
|
|---|
| What makes it different | - Single HTTPS endpoint with no SDK or device token management required
- Full subscriber control with ability to pause, change channels, or unfollow at any time
| - 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
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 11 ▼ −1 (down) since last check |
|---|
| Trust Flow (Majestic) | 4 | 2 |
|---|
| Citation Flow (Majestic) | 9 | 28 |
|---|
| Referring domains (Majestic) | 4 | 41 |
|---|
Nudgebox
CitrusMail