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First Run — Get The Most Out Of Your Free BookScores™
You have 5 free BookScores™ — let's make the first one count.
You're getting 5 BookScores™ in total — for life, on this account. Not per month, not per refresh — you ship what you write, so the book ideas you put through this validator should be the ones you'd actually want to publish. Spend your first one on a premise you really care about, where the answer actually matters.
Literary
The Quiet Algorithm. A middle-aged translator in 1970s Lisbon begins receiving encrypted messages from her estranged father, who died three years ago. Literary fiction · adults 35–65 who prize quiet, character-driven plots.
Genre / Commercial
Silent Debt. A forensic accountant goes undercover at a debt-settlement startup to expose a racket targeting widows on fixed income. Thriller · adults 30–55, fans of legal and financial suspense.
Concrete hook
Reader can picture the inciting moment in one sentence.
Specific market
A reader, not a category — age, sub-genre, comp titles.
Original angle
One fresh mechanic or twist that isn't already in 10 books.
Audience clarity
Words like "middle-grade" or "50+ thrillers", not "everyone".
Validate your idea before you invest months writing it.
Validate Your Book Idea
Enter your book details and the AI will analyze market demand, competition, commercial potential, and more — before you write a single word.
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Restored from last session
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Your Book
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AI is analyzing your book idea…
Checking market demand…
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Your Book
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Analyzing
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BookScore™ measures your book's commercial viability before you write a word.