Hey Product Hunt 👋 I built Book Check Genie after finding a genuine timeline contradiction in my own manuscript — a character referencing an event that, according to an earlier chapter, hadn't happened yet. I'd read that draft a dozen times and never caught it. For authors writing a series, this gets worse with every book: you're tracking hundreds of facts (eye colour, who knows what secret, exact dates, injury timelines) across tens of thousands of words, sometimes years apart. Sooner or later something slips through, and readers always find it. Book Check Genie reads your manuscript end to end and flags contradictions — character, timeline, numeric, and worldbuilding — with the exact chapters involved. Once you confirm a fact is correct, it becomes canon, and every future book or revision in the series is automatically checked against it. Upload a new draft and it tells you exactly which flagged issues you actually fixed. Free sample check, no card needed. Would love your feedback — especially from other indie/series authors on what continuity headaches you've hit that this doesn't catch yet.

Book Check Genie

Continuity & canon checks for novelists

Continuity & canon checks for novelists