Shiro
Forever, on Mac, Windows and Linux
Free
- The whole app: Board, Write, World, Publish
- AI with a local model or your own key
- Authorship record and process reports
- Import from Scrivener and Novelcrafter
Pricing
Writing Alone Is Free. Cloud Is for When the Book Leaves Your Desk.
The desktop app is free forever, with no account. Cloud is for what one computer can’t do.
Save 20%
Your Chatbots, Inside the Book.
Cloud Plus costs about what one chatbot subscription does. It puts Claude, GPT, Gemini and Mistral in the project, where they’ve already read the book. One bill, no keys, no pasting.
The Book on Every Device.
Sync between your computers and the browser, 90 days of history on every scene, and room for every research PDF.
Other People in the Book.
Co-authors and editors who need only a free account, links for beta readers who need none, and Send to Kindle.
Cloud Core
Everything Cloud does, for writing with no AI or with your own key
$9 / month$84 / year
- No hosted AI: your own key or a local model
- Sync between your computers and the web
- Co-authors, editors and review links
- 90 days of version history
Cloud Plus
For writing every week, with Shiro’s hosted AI
$19 / month$180 / year
- $6 of AI a month at provider prices
- Sync between your computers and the web
- Co-authors, editors and review links
- 90 days of version history
Cloud ProRecommended
For writers who work with Shiro every day
$39 / month$372 / year
- $12 of AI a month at provider prices
- Sync between your computers and the web
- Co-authors, editors and review links
- 90 days of version history
Cloud Max
For full drafts, long books and the series you promised yourself
$99 / month$948 / year
- $32 of AI a month at provider prices
- Sync between your computers and the web
- Co-authors, editors and review links
- 90 days of version history
Prices in US dollars, before tax; the app also shows euros, pounds, Swiss francs and Canadian or Australian dollars. Extra AI credits never expire.
Credits That Don’t Vanish
When the month’s allowance runs out, a lighter model keeps up with everyday tasks, within a fair-use limit. Credits you buy on top never expire.
Stop Paying, Keep the Book
Your account goes back to free and your books stay yours. Take any of them home as a folder of text files, whenever you like.
Move In Without Packing
Bring a Scrivener 3 project, a Novelcrafter export, Word files with their tracked changes, or Markdown. The original stays as it was. Yes, final_final_v7.docx too. How importing works
Cloud Keeps the App Free
Cloud is the closed, paid part of Shiro, and it pays for the open part. That’s how the desktop app stays free, with no catch in chapter 12.
Already Paying for Three Chatbots?
Many writers do. Here is what the same kind of money does inside the book, including the row where the chatbots win.
| Three chatbots | Shiro Cloud Plus | |
|---|---|---|
| Monthly | Three subscriptions, one per company | One plan, $19 a month |
| Has read your book | What you paste in today | Every scene, character, source and style rule |
| Models | One each | Claude, GPT, Gemini and Mistral, chosen per task |
| How edits arrive | A new version to copy back | Tracked changes in your manuscript, to accept or reject |
| Your writing used for training | Set by each company, in settings that change | Never by Shiro; the model maker’s API terms apply |
| Record of what you wrote | None | Typed, pasted or AI, in a signed report |
| Also included | Nothing for books | Sync, 90 days of history, co-authors and beta readers |
| Raw chat for the money | Much more | Less: an allowance at provider prices, then a lighter model |
The Questions People Ask
Is the free version really the whole app?
Yes. Board, Write, World, Research and Publish, the authorship record, and AI with a local model or your own key. The free app has no word limit and no expiry. You’ve spent more on notebooks you never opened.
What do I actually pay for with Cloud?
Sync between your computers and the web, co-authors and review links, longer version history, and hosted AI with a monthly allowance, so you have no keys to manage.
What happens to my book if I stop paying?
A local project stays on your disk, in plain files, and keeps working in the free app. A cloud project can be downloaded as a folder of the same plain files.
What does the AI allowance mean?
Each plan includes a monthly amount of AI at the price the model providers charge. If you run out, you can buy extra credits, and those never expire.
Do I need Cloud to use AI?
No. A model on your own computer or your own API key both work in the free app. Or leave the AI off altogether.
I already pay for ChatGPT or Claude. Can I use that?
Not directly. A chatbot subscription isn’t an API key, so no other app can use it. You can make an API key with the same company and pay them per use, or let Cloud handle it: Cloud Plus includes Claude, GPT, Gemini and Mistral, inside the book.