Signal Extractor vs Quick Viral Notes
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Signal Extractor compared with Quick Viral Notes
| Detail | 
Signal Extractor | 
Quick Viral Notes |
|---|
| What it does | Summarize any YouTube video or X post in 10 seconds
| Turn Substack articles into viral social posts
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| Stage | Not given
| Startup
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| Founded | Not given
| 2025
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| Based in | Not given
| Not given
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free: 10 credits (one-time). Monthly: $7/mo for 70 credits. Yearly: $65/yr for 600 credits.
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| Key features | - Summarize YouTube videos and X posts
- Key points with timestamps
- Ask follow-up questions
- AI-generated summaries from real transcripts
- Chrome extension
- Save summaries to account
- Follow favorite YouTube channels
- Get summaries by email
| - TYPE-FORMULA pipeline that extracts insight types (diagnostic, wisdom, contrarian, data-backed, framework, story) and applies viral structures
- Knowledge Bank to store, browse, and reuse extracted insights
- 10+ viral formula structures including parallel repetition, conditional framework, and bridge analogy
- Chrome extension for scheduling posts directly to Substack
- Rich-text editor with HTML and plain text export
- MCP integration for Claude and Cursor
- Automatic article URL processing from published or draft posts
- Priority processing for paid plan users
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| What makes it different | - Saves time with ten-second summaries instead of watching full videos
- Free with no account required
- Handles both video and social media content
- Interactive chat to ask follow-up questions about content
| - Designed specifically for Substack writers with formulas trained on viral patterns
- Two-stage TYPE-FORMULA process instead of generic AI summarization
- Knowledge Bank compounds over time as more articles are processed
- From URL to scheduled post in minutes with no copy-paste needed
- Credits never expire at your own publishing pace
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ▼ −1 (down) since last check | 10 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 9 | 0 |
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| Citation Flow (Majestic) | 22 | 15 |
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| Referring domains (Majestic) | 51 | 5 |
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4 details filled in for both companies.
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