| What it does | Turn Substack articles into viral social posts
| Rewrites AI-generated text into natural human writing that passes detection checks
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| Stage | Startup
| Not given
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| Founded | 2025
| Not given
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| Based in | Not given
| US
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| Pricing model | Freemium
| Freemium
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| Pricing | Free: 10 credits (one-time). Monthly: $7/mo for 70 credits. Yearly: $65/yr for 600 credits.
| Free: 200 words per run, 5 runs per day. Basic: $4.99/month billed yearly ($59.88 per year), 15,000 words per month, 1,000 words per run. Pro: $9.99/month billed yearly ($119.88 per year), 50,000 words per month, 3,000 words per run.
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| Key features | - 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
| - Standard and Enhanced rewriting modes
- Multiple text type options: Essay, Email, Blog/Article, General
- Built-in AI detection scoring
- Free AI text cleaner tool
- Works with ChatGPT, Gemini, Copilot and other AI writers
- Preserves facts, arguments, names, numbers and citations
- No sign-up required for free tier
- Text never stored or used for training
- Adjusts tone to match document type
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| What makes it different | - 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
| - Rewrites sentence structure, word choice and pacing rather than just swapping synonyms
- Shows AI detection scores side by side before submission
- Produces cleaner output than paraphrasers without breaking citations
- Enhanced mode tests five versions and returns the best-scoring one
- Free tier available without sign-up for up to 200 words per run
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 10 ▲ +2 (up) since last check | 2 ▼ −8 (down) since last check |
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| Trust Flow (Majestic) | 0 | 5 |
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| Citation Flow (Majestic) | 15 | 20 |
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| Referring domains (Majestic) | 5 | 8 |
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Quick Viral Notes
The Humanizer