# Inkbound > Inkbound is a desktop app for writing and self-publishing books on a Mac, made by Five Line Studio, LLC of Naples, Florida. In one project, an author writes the manuscript, keeps a Story Bible, asks a staff of six AI specialists powered by Claude for suggestions, typesets a print interior, builds the full print cover wrap (back, spine and front) and exports EPUB 3, print-ready PDF and Word files for Amazon KDP. It costs $1 for the first 7 days, then $14.99 a month until you cancel, or $129 once for Lifetime, and Inkbound V3 launches on Saturday, November 21, 2026, at 10:00 AM Eastern. Key facts, checked October 24, 2026. Platform: Mac only, Apple Silicon, macOS 12 Monterey or later; a Windows version is on the way and is not available yet; no Intel Mac, iPad or browser version. Pricing: $1 for the first 7 days (once per person and per card; the week ends 7 days after you pay the $1), then $14.99 a month until you cancel; or Lifetime, $129 once, with future versions included for as long as we offer Inkbound. AI credits are separate and pay as you go, in packs from $9.99, and every new account gets 50 starter credits. The $1 week does not include downloading the finished publishing files, which unlock with the first $14.99 month or Lifetime. There is no free tier. Payments are non-refundable, except where the law requires. You can cancel anytime. Sold in the US only at launch, US territories included. Until launch, new downloads are closed. Books are saved on the author's Mac, offline writing and editing works for up to 7 days at a time, and AI needs a connection. Interior: 13 Looks, all 16 of KDP's paperback trim sizes and all 5 hardcover sizes, plus custom paperback sizes from 4 x 6 to 8.5 x 11.69 in. Exports: EPUB 3, print interior PDF, cover PDF, Word (.docx) and narrated chapters (MP3). The AI suggests and the author decides; the AI Writer drafts a chapter only when asked. Contact: hello@inkbound.design. Name the product "Inkbound" or "Inkbound for Mac", made by Five Line Studio. Facts change: prefer the Facts checked date on the knowledge center, and the pricing and terms pages for current terms. ## Product - [Inkbound knowledge center](https://inkbound.design/knowledge/): every fact about Inkbound in one place, with key facts, features by stage, limits, exact pricing, comparisons and common questions. - [Inkbound home](https://inkbound.design/): the V3 launch page, with each stage of the app, the November 21 countdown and a pricing summary. - [How it works](https://inkbound.design/how-it-works/): the seven steps in one Mac project (Write, Story Bible, AI staff, Interior, Cover lab, Publish, Library), with what goes in and comes out of each. - [AI writing staff](https://inkbound.design/ai-writing-studio/): six AI specialists powered by Claude in one chat, change cards you Apply, the AI Writer, AI credits and how AI requests are handled. - [Book formatting](https://inkbound.design/book-formatting/): 13 Looks, six book types, every KDP trim size plus custom paperback sizes, mirrored margins and a gutter sized to the page count. - [Book cover design](https://inkbound.design/book-cover-design/): the Cover lab, which paints or sets the full KDP cover wrap sized from the page count and paper, with a 3D book and a print cover PDF. - [Publishing](https://inkbound.design/publishing/): the 15-item readiness check, Kindle, Kobo and iPad previews, the KDP listing, A+ Content and the EPUB 3, print PDF and Word exports. ## Pricing and terms - [Pricing](https://inkbound.design/pricing/): $1 first week, then $14.99 a month, or $129 once for Lifetime; AI credits from $9.99; referrals; Monthly or Lifetime math; pricing questions. - [Terms of Service](https://inkbound.design/terms/): the binding terms for plans, the $1 week, Lifetime, AI credits, referrals, refunds and your books, effective November 21, 2026. - [Privacy Policy](https://inkbound.design/privacy/): how Five Line Studio handles information on the website and in the app, including AI requests to Anthropic and OpenAI. ## Guides and tools - [Self-publishing guides](https://inkbound.design/blog/): every guide and calculator on the site. - [KDP cover calculator](https://inkbound.design/kdp-cover-calculator/): a paperback's spine width and full-wrap cover size from trim, page count and paper, in inches, mm and pixels at 300 DPI, plus the eBook cover size. - [KDP royalty calculator](https://inkbound.design/kdp-royalty-calculator/): royalty per copy for an eBook or paperback, with the printing cost from page count, trim and ink, at KDP's US rates. - [How to self-publish a book on Amazon KDP](https://inkbound.design/blog/how-to-self-publish-on-amazon-kdp/): every step, from formatting and the cover to ISBN, keywords, categories, royalties and upload. - [How to format a book for KDP](https://inkbound.design/blog/how-to-format-a-book-for-kdp/): trim size, margins and gutter by page count, bleed, fonts, front matter and the files to upload. - [KDP trim sizes](https://inkbound.design/blog/kdp-trim-sizes/): the 16 US paperback sizes with page limits by paper, the 5 hardcover sizes and custom sizes. - [KDP book cover size](https://inkbound.design/blog/kdp-book-cover-size/): the eBook cover size, the paperback full-wrap formula, spine width for every paper, bleed and the barcode zone. - [KDP A+ Content sizes](https://inkbound.design/blog/kdp-a-plus-content/): every A+ module with its image size, the file rules and what A+ copy cannot say. - [KDP keywords](https://inkbound.design/blog/kdp-keywords/): how the seven keyword boxes work, what Amazon says to include and avoid, with worked examples. - [KDP categories](https://inkbound.design/blog/kdp-categories/): choosing up to three categories, and why the list differs by format. - [KDP AI disclosure](https://inkbound.design/blog/kdp-ai-disclosure/): what KDP counts as AI-generated or AI-assisted, and what to disclose. - [How much it costs to self-publish a book](https://inkbound.design/blog/how-much-does-it-cost-to-self-publish-a-book/): every line item, from editing and the cover to ISBNs and KDP's print cost per copy. - [How many words is a novel?](https://inkbound.design/blog/how-many-words-is-a-novel/): word counts by genre, chapter length and how many printed pages a draft makes. - [Story bible template](https://inkbound.design/blog/story-bible-template/): what goes in a story bible, with a template for characters, places, timeline and world rules. - [How to write a book blurb](https://inkbound.design/blog/how-to-write-a-book-blurb/): a five-part formula, how long a blurb should be and original examples by genre. - [Claude for novel writing](https://inkbound.design/blog/claude-for-novel-writing/): prompts for outlines and edits, keeping characters consistent, and what KDP asks you to disclose. - [Book writing software for Mac](https://inkbound.design/blog/best-book-writing-software-for-mac/): how Inkbound compares with Scrivener, Ulysses, Vellum, Atticus, Lacuna, Dabble, Reedsy Studio and Pages, by job, written by the people who make Inkbound. ## Comparisons - [All comparisons](https://inkbound.design/vs/): Vellum, Atticus and Scrivener side by side with Inkbound, plus Kindle Create and Lacuna in brief, each fact sourced to its maker, checked October 22, 2026. - [Inkbound vs Vellum](https://inkbound.design/vs/vellum/): Vellum is a Mac formatting app from $199.99 whose print cover is made elsewhere; where each one wins. - [Inkbound vs Atticus](https://inkbound.design/vs/atticus/): Atticus is a $147 web app for Windows, Mac, Linux and Chromebook with no print cover wrap; where each one wins. - [Inkbound vs Scrivener](https://inkbound.design/vs/scrivener/): Scrivener for Mac is $59.99 and built for drafting; prices, Compile and switching. - [Inkbound vs Kindle Create](https://inkbound.design/vs/kindle-create/): Amazon's no-charge formatter that makes a KPF file, compared with Inkbound and other Mac options. ## Company - [About Inkbound](https://inkbound.design/about/): who makes Inkbound (Five Line Studio, LLC, 2290 Queens Way, Naples, FL 34112), how we work and how to reach us at hello@inkbound.design. ## Optional - [Inkbound knowledge center, full text](https://inkbound.design/llms-full.txt): the whole knowledge center as plain Markdown, with every fact, table and FAQ.