AIWriteBook vs Preuve AI

AIWriteBook is an all-in-one AI book creation platform used by 15,700+ authors to go from idea to published book in hours - not months.

Start from scratch or import an existing manuscript (.docx, .pdf, .epub). The AI learns your writing style and generates chapters that sound like you, not generic AI. Every book gets deep character development, chapter-by-chapter outlines, and a story bible that keeps your plot consistent.

Fiction authors get AI-generated characters with personalities, arcs, and motivations that drive every chapter. Non-fiction authors can upload reference materials and get structured books with citations, learning outcomes, and exercises built in.

The built-in editor lets you write, edit with AI chat (with diff view to accept/reject changes), generate illustrations, and produce audiobook narration — all without switching tools.

When you're done, generate a professional book cover, optimize your KDP keywords and blurb, and export as KDP-ready EPUB, print PDF (5x8, 5.5x8.5, 6x9 trim sizes), DOCX, or audiobook. Publish on Amazon, Apple Books, Kobo, Google Play, and Barnes & Noble directly.

Features: AI outline generation, character builder, voice-matched chapter writing, AI chat editor with diff view, image/illustration generation, cover designer, KDP keyword research, competitor analysis, audiobook generation, 25 free author tools, and support for 30+ languages.

Preuve AI (formerly Test Your Idea) validates startup ideas before you build. Describe your concept in plain language and 10 specialized AI agents scan 40+ live data sources to produce a sourced viability report in under five minutes.

Each report covers competitor landscape, total addressable market sizing, demand and trend signals, pricing benchmarks, key risk assumptions, and a composite viability score from 0 to 100. Every data point links to its source. Competitor data from Crunchbase, G2, and Product Hunt. Market signals from Google Trends, search volume data, and pricing benchmarks. Demand proof from Reddit, Quora, and niche forums. If the data cannot verify a claim, it is not included.

A free scan delivers a quick overview with viability score and two competitor previews.

The Founder Report ($29) unlocks all 13 sections including go-to-market playbook, community signals, up to 15 mapped competitors with pricing and weaknesses, and 3 AI pivot recommendations.

Founder Radar ($19/mo) keeps watching after you scan. Monthly re-scans, competitor alerts when new players enter or raise funding, and score tracking over time. Builder ($49/mo) adds 5 monitored ideas and 3 new scans per month.

Over 3,500 ideas scanned across 13 industries. 5.0 ratings on Trustpilot. 14-day money-back guarante