YourNovel.app — Write Complete Books with AI | AI Book Writer & Author Assistant

YourNovel.app is an AI book writer that creates complete novels and books of 100,000+ words (350+ pages) with professional coherence, AND a free Author Assistant that helps existing authors structure, brainstorm, and polish their manuscripts. Holistic Memory AI remembers every detail of your story from start to finish. Write novels, guides, research papers, and essays in English, Spanish, French, Italian, German, or Portuguese. Try free, no credit card required.

The #1 AI Book Writer — Why YourNovel.app?

YourNovel.app is the best AI book writing software for authors who want complete, coherent, publication-ready books without months of work.

How to Write a Book with AI Using YourNovel.app

Writing a book with AI takes just 5 steps: create a free account, define your project (title, genre, synopsis), generate the holistic structure automatically, write each section with one click, and export in DOCX or PDF.

  1. Start free: No credit card required. Create your account in 30 seconds.
  2. Define your book: Choose a title, genre, synopsis, and writing style.
  3. Generate structure: The AI creates your complete chapter-by-chapter outline using Holistic Memory.
  4. Write with Auto-Pilot: The AI writes each section autonomously, maintaining perfect coherence.
  5. Export & publish: Download your finished manuscript in DOCX or PDF format for Amazon KDP.

Plans & Pricing

YourNovel.app offers affordable AI book writing plans starting from €19/month — a fraction of the €5,000–50,000+ cost of a human ghostwriter.

Author Assistant — Free AI Writing Tools for Authors

Already writing your own book? The Author Assistant is a free AI companion that helps you structure, brainstorm, and polish your manuscript. No registration required — start instantly.

Author Assistant Plans

YourNovel.app vs Sudowrite

Sudowrite is great for short fiction in English, but limited to ~30,000 words and requires manual scene-by-scene writing. YourNovel.app generates complete 100,000+ word books autonomously with Auto-Pilot, supports 6 languages, and includes academic citations — features Sudowrite doesn't offer.

YourNovel.app vs ChatGPT for Book Writing

ChatGPT forgets your characters after a few messages and is limited to ~4,000 words per session. YourNovel.app uses Holistic Memory to retain your entire manuscript context across 100,000+ words, with Story Bible and Auto-Pilot mode for fully autonomous book generation.

YourNovel.app vs NovelCrafter

NovelCrafter offers flexibility with AI model selection but requires significant manual context management through its Codex. YourNovel.app automates context entirely with Holistic Memory and offers autonomous book generation with Auto-Pilot mode — no manual context management needed.

Blog — AI Writing Tips & Guides

Explore YourNovel.app

Available Languages / Idiomas

Write your book with AI for free → | Escribe tu libro con IA gratis →

· 3 min read · 459 words

How to Format AI-Written Books for Amazon KDP (2026 Guide)

You've written your book with AI. Now you want to publish it on Amazon KDP. This guide covers everything from manuscript formatting to legal requirements for AI-assisted content.

You've written your book with AI. Now you want to publish it on Amazon KDP. This guide covers everything from manuscript formatting to legal requirements for AI-assisted content.

Step 1: Export Your Manuscript

YourNovel.app exports directly to DOCX and PDF formats. For Amazon KDP, you'll want the DOCX format — it gives you the most control over formatting.

Step 2: Format for KDP Requirements

Amazon KDP has specific formatting requirements:

  • Margins: 0.25 inch minimum for eBooks, varies for print (depends on page count)
  • Font: Use a standard serif font (Garamond, Georgia, or Times New Roman) at 11-12pt for body text
  • Chapter headings: H1 formatting with page breaks before each chapter
  • Front matter: Title page, copyright page, dedication (optional), table of contents
  • Back matter: About the author, other books by the author

Step 3: AI Content Disclosure

Amazon's current policy (2026): AI-assisted content is allowed, but you must disclose AI involvement during the publishing process. Amazon does NOT require disclosure on the book itself — only in the publishing dashboard.

Key points: - You own 100% commercial rights to content generated with YourNovel.app paid plans - AI-assisted content is permitted across all KDP categories - Amazon's review process checks for quality, not AI detection - Low-quality, mass-produced AI content may be flagged or removed

Step 4: Cover Design

Your book needs a professional cover. Options: - Canva: Free/paid templates specifically for KDP dimensions - 99designs: Professional covers from $299 - Fiverr: Budget covers from $20-100 - AI-generated covers: Tools like Midjourney or DALL-E (check KDP policies for AI-generated images)

Step 5: Metadata Optimization

KDP metadata determines discoverability:

  • Title: Include your main keyword naturally
  • Subtitle: Use for secondary keywords
  • Description: 4,000 characters max — use HTML formatting for emphasis
  • Keywords: 7 keyword phrases per book (use long-tail keywords)
  • Categories: Choose 2 categories — as specific as possible

Step 6: Pricing Strategy

For eBooks: - $2.99-9.99: 70% royalty rate - $0.99-2.98 or $10+: 35% royalty rate

For most AI-written fiction, $3.99-4.99 is the sweet spot for new authors.

Step 7: Launch Checklist

  • [ ] Manuscript formatted and proofread
  • [ ] Cover designed and uploaded (2560×1600px for eBook)
  • [ ] Title, subtitle, and description optimized
  • [ ] 7 keyword phrases selected
  • [ ] 2 categories chosen
  • [ ] AI disclosure completed in dashboard
  • [ ] Price set
  • [ ] Preview checked in KDP Previewer

Publishing Timeline

From AI book generation to live on Amazon: 1. Generate book with YourNovel.app: 4-8 hours 2. Review and edit: 2-4 hours 3. Format for KDP: 1-2 hours 4. Cover design: 1-24 hours (depending on method) 5. Upload and publish: 1 hour 6. Amazon review: 24-72 hours

Total: Your book can be live on Amazon within 1 week.

Start writing your KDP book for free →

Part of the Complete Guide to Writing a Novel with AI series.


✍️ Ready to write your book?

Start for free — no credit card required. Create your first book structure in minutes.

Start writing your book for free →