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.
AI Book Writer with Holistic Memory: The AI remembers chapter 1 when writing chapter 50. Total coherence across your entire work — no AI amnesia.
Complete 100,000+ Word Books: Write full 350+ page books with AI, ready to publish on Amazon KDP. Novels, guides, manuals, and essays.
Fully Autonomous AI Writing: The AI writes your entire book autonomously. Define the concept, and the AI delivers a complete, coherent manuscript.
Write Books in Hours, Not Months: Generate a complete 100,000-word book with AI in hours, not months. A fraction of the cost of hiring a human ghostwriter.
Research Papers with Citations: Academic writing with automated APA, Harvard, Chicago, and ISO 690 citations.
Free AI Book Writer Trial: Start with 3 free sections and full structure generation. No credit card required.
Professional Export: Download your ghostwritten manuscript in DOCX, PDF, or Markdown format.
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.
Start free: No credit card required. Create your account in 30 seconds.
Define your book: Choose a title, genre, synopsis, and writing style.
Generate structure: The AI creates your complete chapter-by-chapter outline using Holistic Memory.
Write with Auto-Pilot: The AI writes each section autonomously, maintaining perfect coherence.
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.
Free Trial — 3 sections free, no credit card. Try the AI book writer.
Starter Writer (€19/month) — Write 1 complete book with AI, full commercial rights.
Pro Author (€39/month) — Write 3 complete books with AI per month, academic citations, server priority.
VIP Agency (€89/month) — Write 10 complete books with AI per month, dedicated support for publishers and agencies.
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.
AI Book Outline Generator: Generate complete chapter-by-chapter outlines with narrative beats for novels (3-act structure), guides (step-by-step), and essays (argumentative structure).
AI Brainstorm Chat: Discuss character motivations, plot twists, subplots, and overcome writer's block with an AI that has full context of your project.
AI Plot Twist Generator: Get creative plot twist suggestions with intensity levels (subtle, medium, dramatic), impact analysis, and insertion point recommendations.
AI Pacing Analysis: Score your narrative rhythm, identify tension drops between chapters, flag chapters that are too long or short, and get improvement suggestions.
AI Consistency Checker: Detect character inconsistencies, timeline errors, location contradictions, and logical plot holes across your entire manuscript.
AI Beta Reader: Get engagement scoring, chapter-by-chapter reviews, strengths and weaknesses analysis, reader drop-off risk, and personalized recommendations.
Pro ($9.99/month) — 15 projects, unlimited brainstorm, consistency checker, AI beta reader.
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.
You've finished your manuscript. You're proud of it. But hiding in those 80,000 words are inconsistencies you can't see — because your brain auto-corrects as you read your own work. Here are the 5 warning signs that your novel needs AI consistency checking.
You've finished your manuscript. You're proud of it. But hiding in those 80,000 words are inconsistencies you can't see — because your brain auto-corrects as you read your own work. Here are the 5 warning signs that your novel needs AI consistency checking.
Sign 1: Your Novel Is Over 50,000 Words
Research shows that even professional authors introduce an average of 3-5 significant inconsistencies per 50,000 words. At 100,000 words, that number rises to 8-12. The longer your novel, the more you need automated consistency checking.
Human editors catch some of these, but not all. They're reading sequentially and can't cross-reference every detail mentioned 200 pages earlier.
Sign 2: You Wrote It Over 3+ Months
Long writing periods mean your mental model of the story drifts. What you remembered about a character's backstory in month 1 may not match what you wrote in month 4. The AI compares everything simultaneously.
Sign 3: You Have More Than 8 Named Characters
Character management gets exponentially harder with each new character. With 15+ characters, tracking everyone's physical appearance, relationships, habits, and speech patterns becomes nearly impossible without tools.
Common errors:
- Eye color changes between mentions
- Relationship labels shift (was she his sister or cousin?)
- Characters know information they shouldn't have
- "Dead" characters reappear
Sign 4: Your Timeline Spans More Than 1 Week
Stories with complex timelines — flashbacks, parallel storylines, seasonal references — are consistency minefields:
Characters travel impossible distances in impossible time
It's "Tuesday" in chapter 5 but "the next day" is "Thursday" in chapter 6
A pregnancy is announced in spring and the baby arrives "a few weeks later" in winter
Historical events referenced incorrectly
Sign 5: You Changed Your Mind During Writing
Every author makes mid-story decisions: changing a character's job, altering a location's geography, adding a subplot. But did you go back and fix every reference affected by that change? The AI checks for you.
How AI Consistency Checking Works
The Author Assistant Consistency Checker scans your manuscript for:
Character attribute contradictions — physical descriptions, personality traits, abilities
Location contradictions — geography, distances, building layouts
Knowledge leaks — characters knowing things they shouldn't
Factual contradictions — facts that change between mentions
The Cost of Missing Inconsistencies
1-star reviews mentioning "plot holes" or "sloppy writing"
Reader trust lost — they won't buy your next book
Professional reputation damaged — especially for series authors
Try the Consistency Checker Free
The basic consistency check is available on the Author Assistant Plus plan ($4.99/month). Advanced cross-referencing with the full Consistency Checker requires the Pro plan ($9.99/month).