$39 a month (launch price for first 100 seats), then $59, then $79. Team plan: $149 a month for 5 people, $29 per extra person. 7-day free trial with card required.
Free: 10 credits (one-time). Monthly: $7/mo for 70 credits. Yearly: $65/yr for 600 credits.
Key features
Voice profile learned from your own posts
Interview-based fact gathering
Six editorial checks before publishing
Typeset cards and carousels
Story Bank for facts and stories
Commenter sorting by buyer type
Approval queue for posts, replies and comments
Integration with Claude, ChatGPT and Cursor
Weekly review vs your usual posts
Chrome extension
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
What makes it different
Drafts in your established voice instead of sounding generated
Requires human approval for every post before publishing
Facts checked and traced to sources or your Story Bank
Learns from your own posts, not generic templates
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
Kalamos
Quick Viral Notes