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.
What Is an AI Story Bible and Why Every Author Needs One
A Story Bible (also called a "series bible" or "world bible") is a comprehensive reference document that tracks every detail of your fictional world. In traditional publishing, authors maintain these manually in spreadsheets or notebooks. With AI, this process is fully automated.
A Story Bible (also called a "series bible" or "world bible") is a comprehensive reference document that tracks every detail of your fictional world. In traditional publishing, authors maintain these manually in spreadsheets or notebooks. With AI, this process is fully automated.
What a Story Bible Contains
Characters
- Full names, appearances, ages, backgrounds
- Personality traits, quirks, speech patterns
- Relationships to other characters
- Character arc progression across chapters
World-Building
- Geography, climate, political systems
- Magic systems or technology rules
- Cultural norms and social hierarchies
- Historical events that shape the present
Timeline
- Chronological sequence of events
- Time jumps and flashbacks
- Seasonal or temporal references
- Character ages at key story moments
Plot Threads
- Main plot arc and current status
- Subplots and their interconnections
- Foreshadowing elements planted
- Unresolved questions
Why AI Story Bibles Are Revolutionary
Manual Story Bibles: The Old Way
- Take days to build initially
- Must be updated manually after every writing session
- Easy to forget updates, causing inconsistencies
- Difficult to cross-reference across a 100,000-word manuscript
AI Story Bibles: The YourNovel.app Way
- Built automatically as you define your project
- Updated in real-time as each section is generated
- Cross-referenced automatically — contradictions are caught instantly
- Accessible to the AI during every generation step
This is the core of Holistic Memory — the AI doesn't just remember facts; it understands how they connect and evolve throughout your story.
How Holistic Memory Differs from Competitor Approaches
Without a Story Bible, here's what happens in a long novel:
- Chapter 3: "Maria has green eyes"
- Chapter 18: "Maria's brown eyes narrowed"
- Chapter 25: "Maria, the youngest of three siblings"
- Chapter 31: "As an only child, Maria never learned to share"
With Holistic Memory, these contradictions are impossible. The AI won't generate "brown eyes" because it knows Maria has green eyes.