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.
Best AI Writing Tools for Book Authors (2026): Complete Guide
The AI writing tools landscape in 2026 is crowded and confusing. This guide cuts through the noise with honest comparisons of every major tool, organized by what they actually do well.
The AI writing tools landscape in 2026 is crowded and confusing. This guide cuts through the noise with honest comparisons of every major tool, organized by what they actually do well.
Categories of AI Writing Tools
Not all AI tools serve the same purpose. Understanding the categories helps you choose the right one:
1. Autonomous Book Writers — Generate complete books with minimal input
2. Writing Assistants — Help you write better, but you do the writing
3. Brainstorming Tools — Help with ideas, outlines, and character development
4. Editing & Analysis Tools — Improve existing manuscripts
5. General-Purpose AI — Can write anything, but nothing exceptionally
Category 1: Autonomous AI Book Writers
YourNovel.app â Best Overall
- **What:** Fully autonomous AI that generates complete 100,000+ word books
- **Key feature:** Holistic Memory — remembers entire book context
- **Best for:** Complete novel generation, non-fiction, academic writing
- **Languages:** 6 (EN, ES, FR, DE, IT, PT)
- **Pricing:** €19-89/month
- **Free trial:** 3 sections, no credit card
- **Unique:** Auto-Pilot mode, academic citations, [Author Assistant](/author-assistant/) included free
- [Try YourNovel.app free →](https://yournovel.app)
Squibler
- **What:** AI-assisted writing platform with book generation capabilities
- **Best for:** Visual plotting and chapter management
- **Pricing:** $16-36/month
- **Limitation:** Less sophisticated memory system than Holistic Memory
Category 2: AI Writing Assistants
Sudowrite
- **What:** Scene-by-scene writing assistant with prose enhancement
- **Key feature:** "Describe," "Expand," and "Rewrite" tools
- **Best for:** English fiction writers who want AI-enhanced prose
- **Pricing:** $19-44/month
- **Limitation:** ~30,000 word max, English only, no autonomous mode
- **Comparison:** [YourNovel.app vs Sudowrite](/vs-sudowrite/)
Novelcrafter
- **What:** Flexible writing environment with BYOK (Bring Your Own Key)
- **Key feature:** Codex system for world-building
- **Best for:** Power users who want to choose their AI model
- **Pricing:** $15-25/month + API costs
- **Limitation:** Requires manual context management
Category 3: Brainstorming & Analysis Tools
YourNovel.app Author Assistant â Best Free Option
- **What:** Free [AI assistant](/author-assistant/) for outline generation, brainstorming, [pacing analysis](/blog/ai-pacing-analysis-improve-your-story/), [consistency checking](/blog/signs-novel-needs-ai-consistency-check/), and [beta reading](/blog/ai-beta-reading-professional-feedback/)
- **Best for:** Authors who write themselves but want AI analysis tools
- **Pricing:** Free (basic), $4.99-9.99/month (advanced)
Category 4: Editing Tools
ProWritingAid
- **What:** Grammar, style, and readability analysis
- **Best for:** Polishing completed manuscripts
- **Pricing:** $30/month or $120/year
- **Works with:** Any text, including AI-generated content
Grammarly
- **What:** Grammar and tone checking
- **Best for:** Quick grammar fixes
- **Limitation:** Limited fiction-specific features
Category 5: General-Purpose AI
Claude (Anthropic)
- **What:** General-purpose AI assistant
- **Best for:** High-quality prose generation in short sessions
- **Limitation:** No book-specific features, no persistent memory across sessions
- **Pricing:** Free tier available, $20/month for Pro
ChatGPT (OpenAI)
- **What:** General-purpose AI assistant
- **Best for:** Quick brainstorming and short-form writing
- **Limitation:** Forgets context after ~4,000 words in practice
- **Pricing:** Free tier available, $20/month for Plus
- **Comparison:** [YourNovel.app vs ChatGPT](/vs-chatgpt/)
Comparison Matrix
| Tool | Max Length | Memory | Autonomous | Languages | Price |
|---|---|---|---|---|---|
| YourNovel.app | 100K+ words | Holistic | ✅ Full | 6 | €19-89/mo |
| Sudowrite | ~30K words | Story Bible | ⌠Manual | 1 | $19-44/mo |
| Novelcrafter | Flexible | Codex | ⌠Manual | Multi | $15-25+API |
| Squibler | Flexible | Basic | Partial | Multi | $16-36/mo |
| ChatGPT | ~4K coherent | None | ⌠| Multi | $0-20/mo |
| Claude | ~8K coherent | None | ⌠| Multi | $0-20/mo |
Our Recommendation
For complete book generation:YourNovel.app — the only tool that combines Holistic Memory, Auto-Pilot mode, and 100,000+ word capacity.
For scene-level assistance: Sudowrite — excellent prose tools, but limited to short fiction in English.