Bunsho

What is Bunsho

Bunsho is a story-aware integrated writing environment (IWE) designed for novelists. It builds a connected map of your story—characters, locations, events, and rules—and uses that to catch continuity errors, plot holes, and inconsistencies before your readers do. The editor is free to download for macOS and Windows and requires no account for basic use.

How to use Bunsho

1. Download and install Bunsho for macOS or Windows from the official website.
2. Start writing in the built-in editor. The editor works without an account; sign in when you want to use AI features.
3. Use the World tab to see characters, places, and objects automatically extracted from your prose.
4. Use the Planner to organize chapters with cards that describe each chapter's intent.
5. Run a continuity check by asking for a check. Bunsho will flag contradictions and show both passages in view.
6. Use Director Mode to @-tag characters and describe a scene. Bunsho drafts a beat sheet you approve before rendering prose, checking against what characters already know.

Features of Bunsho

• Continuity Checker: Detects factual, timeline, and world-rule inconsistencies, showing both passages and coordinates.
• World Building: Automatically reads characters, places, objects, and rules from your manuscript.
• Planner: Chapter cards with intents to help structure your story.
• Director Mode: AI-assisted scene drafting with preflight checks and accept/re-render/discard options.
• Local-first: Your book stays on your machine; your canon stays yours.
• Free to download: The editor is free with no account; AI features come with starter credits on the free plan.

Use Cases of Bunsho

• Novelists who want to keep long stories consistent without manual tracking.
• Series writers managing recurring characters, timelines, and world rules across multiple books.
• Fantasy and sci-fi authors with complex world-building and magic systems.
• Discovery writers who need help catching continuity errors after drafting.
• Indie authors who want a desktop-first writing tool with AI assistance.

Pricing

Bunsho offers a free tier and three paid plans:

• Free: $0 — One project, World and Planner included, plus starter AI credits.
• Quill: $8/month — Unlimited projects, full editor, World and Planner, no AI.
• Storyteller: $15/month — Everything in Quill plus the continuity checker and 50,000 credits per month.
• Saga: $29/month — Everything in Storyteller with 100,000 credits per month for daily drafting and series work.

Prices are in USD. Cancel any time. The editor stays free with no account.

FAQ

What exactly does Bunsho do? Bunsho is an integrated writing environment that builds a connected map of your story (characters, locations, events, and rules) and uses that to catch continuity errors when you ask for a check.

Is this an AI that writes my book for me? No. Bunsho is not a ghostwriter. It’s a continuity and consistency assistant that helps you keep your story logically sound while preserving your own voice.

How do I get Bunsho? Download it for macOS or Windows from the website. The editor works with no account. Sign in when you want the AI features.

Will there be a desktop app? Yes. Bunsho is designed as a desktop-first experience. The initial versions may require an internet connection for AI features.

Is Bunsho free? The editor is free to download, with no account. The AI features (the continuity checker and Director Mode) come with starter credits on the free plan, and paid plans add a monthly allowance.

Does Bunsho use AI? Yes. Bunsho uses AI to maintain a persistent understanding of your manuscript and detect continuity issues when you run a check. In Director Mode, it can also draft prose for a scene you direct, but only as a beat sheet you approve first, checked against everything your characters already know before a word is rendered. It never rewrites your existing manuscript without your say-so.