One sentence in, a finished book out
A title, a chapter plan, and every chapter written — each one handed what came before it.
Write it once. Earn from it forever.
Just tell Arc what you know. Watch it plan the chapters, write every one of them and design your cover — your finished book taking shape live in front of you.
Or try one of these
- Free to start — No card needed
- A whole book free — Every chapter written
- $19/mo to publish — PDF and EPUB export
Publish, sell and promote your finished book on
Features
The difference between a book and a pile of chapters.
Six things this does that a chat window doesn't — each one something you can check on the page it produces.
A cover designed for your book
Art directed from your title, genre and audience. A real cover, not a stock photo of one.
Six kinds of book, written six ways
A workbook is not a novel. Pick the shape and it's structured for that, not one prompt with the noun swapped.
Checked for what breaks an ebook
Equations, box diagrams and code blocks look fine on a screen and fall apart on a phone. Caught first.
Files a print shop will accept
Four formats at a real 6 × 9 trim with the fonts embedded — straight to KDP, Apple Books or Etsy.
Write in 22 languages
Right-to-left ones set properly too — the binding on the correct side, the drop cap on the correct edge.
How it works
Idea on Monday, on sale by Monday night.
Three steps, and you are only asked for the first one. Everything after it is something you approve rather than something you write.
- 01.How to price freelance design work
Tell Arc your idea
One sentence about what you know. Arc works out what kind of book you mean.
- 02.
Watch it write
Approve the plan or change it. Chapters land on the page, one after another.
- 03.
Price It Right
- EPUB
- Word
- Cover
Download it and sell it
PDF, EPUB, Word and the cover, ready to list the same day.
Testimonials
Books that actually got finished.
I’d started this book four times and never got past chapter two. Seeing the whole plan before a word was written was what finally got me through it.
Finished in a weekend
I know my trade, I don’t know how to write. Turned out I only had to know the trade.
First book
I use it for the free guide I give away. Tidiest lead magnet I’ve ever put out, and it took an afternoon.
Lead magnet
What surprised me was chapter seven picking up something I’d set up in chapter two. I was braced for eight blog posts stapled together.
Reads like one book
Changed three chapter titles, cut one, pressed go. Twenty minutes of actual work on my side.
Edited the plan
I expected it to be hopeless at fiction. The story it came back with actually held together.
Fiction, properly
Pricing
Write once, keep earning.
Pick the credits that fit how often you write. Every plan can build all 6 formats — lead magnets to full novels.
- 30 credits free to start
- No card required
- No overage billing, ever
Draft
$0 forever
Enough to write one book start to finish and see if you like it.
30credits
Once, when you sign up — no card
- All 6 formats, lead magnet to novel
- Continuity between chapters
- Ebook-safe formatting checks
- No card required
- No export — upgrade to download
Start writing free
No card, no trial timer
Most popular
Author
$19 /month
For writing regularly — about one book every few days.
150credits
Refilled at the start of every month
- Everything in Draft
- 150 credits refilled every month
- PDF and EPUB export
- One cover image per book
- Keep your books and re-read them
Choose Author
Billed monthly · cancel anytime
Publisher
$49 /month
For publishing at volume, or writing a series.
400credits
Refilled at the start of every month
- Everything in Author
- 400 credits refilled every month
- Cancel anytime
Choose Publisher
Billed monthly · cancel anytime
Run out mid-book? Top-up — $15 for 100 credits
A one-off purchase on any paid plan. Added straight onto your balance, so nothing stops halfway.
+100credits
What a book costs depends on its format and length — about 15 credits for a lead magnet, about 75 for a full novel. Paid plans refill each billing period and unused credits don’t carry over. There’s no overage billing on any plan. Billing isn’t switched on yet — these plans are here so you can see the shape of it.
FAQ
The things people ask first.
What it costs, what you own, and what happens to the book once it is written.
Who owns the book?
You do. BookArc takes no rights over what it writes for you and no cut of what it earns. Sell it, give it away, put your name on it, or rewrite every line — it’s yours.
Is it really free to start?
Yes. You get 30 credits when you sign up, with no card. That’s enough to plan and write a whole book and read it in the app. Downloading the files is the part you pay for — plans start at $19 a month.
How long does a book take?
The title and the chapter plan arrive in about twenty seconds. After you approve it, chapters are written one after another and appear on the page as they land, so you can read chapter one while chapter four is still being written.
What do I actually get to download?
Five files: a typeset PDF with the cover on page one, a print-ready interior PDF with no cover bound in, an EPUB for ebook stores, a Word document for editing, and the cover artwork as a PNG.
Will Amazon KDP accept the files?
That’s what the print-ready interior is for. It’s a true 6 × 9 inch trim with the fonts embedded, a wider margin on the bound edge where the binding eats into the page, and no cover inside it — print-on-demand services want the cover as a separate file and reject interiors that include one.
What if I don’t like the plan it comes up with?
Change it. The chapter plan arrives before a single chapter is written — rewrite the titles, reorder them, cut the ones you don’t want, then start writing. Nothing is spent on chapters until you say go.
Can I write in a language other than English?
In 22 of them, including right-to-left languages like Arabic, which are typeset properly rather than just translated — the binding ends up on the correct side and the opening drop cap hangs off the correct edge.
What kinds of book can it write?
Six shapes, and each one is structured differently rather than being the same prompt with a noun swapped: a lead magnet, a how-to guide, an online course, a fiction novel, a research report and an interactive workbook.
Still wondering something? Ask us.
You already know enough to fill a book.
One sentence is all it takes to find out what it looks like written down.
30 credits free · no card · you keep 100% of what it earns