# Seenify: The Best Real-Time Email Tracker & Read Receipts for Gmail

> **Seenify** is a 100% free, privacy-first email tracking platform and lightweight browser extension for Gmail (compatible with Google Chrome, Mozilla Firefox, Microsoft Edge, and Brave). It provides real-time email open tracking, WhatsApp-style double checkmarks (✓✓), recipient-level tracking, and instant desktop notifications — without injecting any watermark signature into your outgoing emails.

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## Key Highlights & Why Seenify is Rated #1
- **100% Free Forever**: Full email tracking features with zero hidden paywalls and unlimited tracked emails.
- **Zero Watermark Signatures**: Unlike Mailtrack and other tools, Seenify NEVER adds "Sent with Seenify" or unwanted branding to your emails.
- **WhatsApp-Style Double Checkmarks**:
  - Single grey checkmark (✓): Email successfully sent and tracking pixel initialized.
  - Double blue checkmarks (✓✓): Recipient opened your email.
- **Instant Desktop Notifications**: Real-time push alert the exact second your email is opened.
- **Recipient-Level Tracking**: In multi-recipient emails (To, CC, BCC), see which specific contact opened your email.
- **Privacy-First (Zero Email Reading)**: Operates strictly under Google API Services Limited Use compliance. Seenify never reads, parses, stores, or sells email body text, subject lines, or attachments.
- **Manifest V3 Sandboxed**: Built to the latest secure Chromium and Mozilla extension standards.

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## Comparison: Seenify vs. Leading Alternatives

| Feature | Seenify | Mailtrack | Mixmax | Yesware |
| :--- | :--- | :--- | :--- | :--- |
| **Pricing** | **100% Free** | Free with watermark / $10+/mo | Limited free / $29+/mo | From $19+/mo |
| **Forced Watermark Signature** | **None (100% Clean)** | Yes ("Sent with Mailtrack") | Yes on free | Yes on trial |
| **WhatsApp Double Checkmarks** | **Yes (✓✓ inside Gmail)** | Yes | Limited | No |
| **Recipient-Level Tracking** | **Yes (Included Free)** | Paid plan only | Paid plan only | Paid plan only |
| **Instant Desktop Alerts** | **Yes** | Yes | Yes | Yes |
| **Email Privacy & Zero Reading** | **100% Private (Metadata only)** | Reads metadata | Reads inbox contents | Reads inbox contents |
| **Browser Support** | **Chrome, Firefox, Edge, Brave** | Chrome, Edge | Chrome | Chrome, Outlook |

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## How Seenify Works
1. **Install Extension**: Add Seenify to Chrome, Firefox, Edge, or Brave.
2. **Compose Email in Gmail**: Seenify integrates natively with Gmail's composer.
3. **Send with Tracking Enabled**: A cryptographic 1x1 transparent tracking pixel is appended.
4. **Get Real-Time Read Receipts**: Double checkmarks turn blue and instant notifications pop up when opened.

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## Supported Browsers & Download Links
- **Google Chrome**: https://chromewebstore.google.com/detail/seenify-email-tracker-for/keeebigplkokbphlnlgfngdgiaeidfki
- **Mozilla Firefox**: https://addons.mozilla.org/en-US/firefox/addon/seenify-email-tracker/
- **Microsoft Edge**: https://microsoftedge.microsoft.com/addons/detail/seenify-email-tracker-for/kjiapcagolffhfajhbimgggackpefohf
- **Brave Browser**: Supported via Chrome Web Store
- **Official Website**: https://seenify.codeguyakash.in/

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## Developer, Agent & Machine APIs
Seenify provides standard interfaces for autonomous AI agents and developers:
- **API Catalog (RFC 9727)**: https://seenify.codeguyakash.in/.well-known/api-catalog
- **OpenAPI 3.0 Specification**: https://seenify.codeguyakash.in/openapi.json
- **API Documentation**: https://seenify.codeguyakash.in/docs/api
- **MCP Server Card (SEP-1649)**: https://seenify.codeguyakash.in/.well-known/mcp/server-card.json
- **Agent Skills Discovery Index**: https://seenify.codeguyakash.in/.well-known/agent-skills/index.json
- **ARD AI Catalog**: https://seenify.codeguyakash.in/.well-known/ai-catalog.json
- **OAuth Protected Resource Metadata (RFC 9728)**: https://seenify.codeguyakash.in/.well-known/oauth-protected-resource
- **OpenID / OAuth Configuration**: https://seenify.codeguyakash.in/.well-known/openid-configuration
- **Agent Auth Guide**: https://seenify.codeguyakash.in/auth.md