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Writing & Content

Bunsho

Novel writing software that tracks characters, timelines, and world rules, and catches continuity errors before readers do

A writing app for novelists that remembers your entire manuscript and flags continuity contradictions with both passages quoted.

About this launch

Screenshot of the Bunsho homepage
bunsho.io, as visitors see it

Bunsho is a desktop writing application for novelists that tracks characters, places, objects, relationships, and world rules extracted from your manuscript. When you ask for a continuity check, it identifies contradictions and plot holes by comparing new chapters against what your story has already established, showing both conflicting passages side by side. The software also includes a Director Mode for drafting scenes with AI assistance, where the AI checks proposed scenes against character knowledge before rendering prose. Your manuscript stays on your machine, not on servers.

What it does

  • Continuity checker that identifies contradictions with both passages quoted
  • Plot hole checker
  • Planner with chapter cards showing intended story purpose
  • Shows how story changes ripple through manuscript
  • Free editor with no account or card required
  • Local-first with manuscript stored on user's machine
  • AI-generated prose for scenes as beat sheets requiring approval
  • Hand-editable character and world entries that become canon

Pricing

Pricing model: Freemium

Free: editor with one project and starter AI credits. Quill: $8/month with unlimited projects, full editor, World and Planner, no AI. Storyteller: $15/month with continuity checker and monthly AI allowance. Saga: $29/month with higher AI limit for daily drafting and series work.

Shopper questions

What exactly does Bunsho do?

Bunsho is a writing app that remembers your entire manuscript, including every character, place, event and rule you establish. When you ask for a continuity check, it identifies where chapters contradict what was already established, showing both conflicting passages quoted.

Is this an AI that writes my book for me?

No. Bunsho is not a ghostwriter. It is a continuity and consistency assistant that helps you keep your story logically sound while preserving your own voice.

Will my manuscript be used to train AI?

No. Your manuscript lives on your machine, not on servers. Pages are only sent for analysis when you run a check, and they are never stored or used for training.

How is the World tab different from a character sheet template?

A template is a form you fill in and then forget to update. The World tab reads your chapters and fills itself automatically, with each detail pointing to the sentence that established it. When your draft changes, a fresh read updates the entry.

Is the World tab free?

The editor is free to download for macOS and Windows with no account, and World and Planner come with a free sign-in that also includes 10,000 starter credits for AI features like reading entries from your manuscript and checking chapters.

Find Bunsho online

More on this profile

Bunsho has a free listing. The owner can unlock the full profile with a paid launch for $5:

  • Founder story (locked)
  • Milestones (locked)
  • Demo video (locked)
  • Dofollow website link (locked)

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