Make AI-assisted writing sound like a real person wrote it
AI writing critique tool for serious authors
Stage
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Founded
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Based in
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Pricing model
Freemium
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Pricing
Weekly Plan: $4.99/week for 25,000 words. Monthly Plan: 3-day free trial with 6,000 words, then $12/month for 80,000 words/month. Yearly Plan: $79/year for 80,000 words/year (Save 45%).
Core Plan: $19/month (200,000 words of editing per month, limited rewriting ability). Pro Plan: $29/month (300,000 words of editing per month, able to rewrite entire chapters and books). A one-time free word sample is available for new accounts.
Key features
Three tones: Natural, Casual, and Professional
Deep mode for second editing pass
Match your own writing style
Preserves headings, lists, and citations
Export as PDF, Word, Markdown, or plain text
Full history backup export as JSON
Encrypted history storage in account
One-time email code sign-in
Ephemeral text processing
Sentence-level literary feedback
Paragraph-level literary feedback
Passage-level literary feedback in context
Chapter-level literary feedback in context
Book-level literary feedback in entire context
One-click text rewriting with AI
Entire chapter rewriting on Pro Plan
Entire book rewriting on Pro Plan
300,000-word context window on Pro Plan
Progressive learning through interactive Q&A
What makes it different
Preserves document structure while rewriting body text
No detector gimmicks, focuses on real human readability
Privacy by design with ephemeral processing
Optional style matching from writing samples
Varies sentence length and removes robotic filler
Human book editors charge thousands but AI Book Editor starts at $19 per month
Gives almost immediate feedback while human editors take weeks
300,000-word context window three times more than average novel
All output belongs 100% to the user for commercial use
ModVC Humanizer
AI Book Editor