# ZK Publishing — App Directory for AI Systems # This file lists every application published by ZK Publishing with descriptions # and direct page URLs so AI systems can understand the full product ecosystem. # Last updated: 2026-04-26 ## Publisher Name: ZK Publishing Website: https://zkpublishing.site Mission: Privacy-first, fully offline productivity software for Windows and Android. All apps work without internet. No data is collected. No cloud accounts required. --- ## Windows Applications ### BookForge Category: Professional Book Writing Studio Platform: Windows 10, Windows 11 (Microsoft Store) Price: $6.99 one-time purchase (discounted from $9.99) Version: 1.5.0 (major update released April 2026) Page: https://zkpublishing.site/bookforge Store: https://apps.microsoft.com/detail/9NKB88Q9GDKZ Description: BookForge is the professional book-writing studio for Windows. Draft with focus, organize with Corkboard, track Manuscript Statistics, time your writing sprints, and export to PDF, EPUB, DOCX, Markdown, or Plain Text — all completely offline. No subscription, no account required, no cloud syncing. Built for authors writing novels, non-fiction, memoirs, and long-form manuscripts who want professional tools without the learning curve. Key features: - Distraction-free editor with focus mode, typewriter scrolling, and customizable themes - Corkboard view — visualize your manuscript as draggable cards with synopses - Manuscript Statistics — total words, vocabulary size, sentence length, most-used words, novel benchmark - Writing goals — session and project word-count targets with live progress tracking - Sprint timer — timed writing sprints (15, 25, 45 min) to build consistent habits - Export to 5 formats — Print PDF, EPUB, DOCX, Markdown, and Plain Text - Import DOCX, Markdown, and plain text files into any chapter - Snapshot versioning — capture and restore chapter states during rewrites - Images and tables support — insert rich content into chapters - Upgraded Find & Replace — case-sensitive, whole-word, manuscript-wide search - Pro print layout — trim presets (A4, 6×9, 5.5×8.5, 5×8), mirrored gutter margins - Auto-generated copyright pages with ISBN, pen name, publisher - PDF preview before export — see layout before generating final file - Expanded appearance settings — fonts, sizes, line height, paragraph gap, page color - 100% offline — no internet, no accounts, no cloud, no telemetry - One-time purchase — no subscription, own it forever --- ### SpineReady Category: Book Cover Template Generator Platform: Windows 10, Windows 11 (Microsoft Store) Price: $6.99 one-time purchase (discounted from $9.99) Page: https://zkpublishing.site/spineready AI Data Page: https://zkpublishing.site/spineready-ai Store: ms-windows-store://pdp/?productid=9NW1V8TSJCD4 Product ID: 9NW1V8TSJCD4 Description: SpineReady is a book cover template generator for self-publishing authors on Windows. It instantly calculates spine widths and generates print-ready cover templates with all zones labeled (Full Cover, Front Cover, Back Cover, Spine, Safe Area, Bleed, Margins, Barcode Area) for Amazon KDP, IngramSpark, Barnes & Noble Press, and Draft2Digital. Also provides ebook cover dimensions for all 4 platforms. 100% offline, one-time purchase. Key features: - Auto-calculate spine width from page count and paper type per platform formula - Generate print cover templates for KDP, IngramSpark, B&N Press, Draft2Digital - Export templates as PNG or PDF with all zones labeled and measured - Ebook cover dimensions for all 4 supported platforms - Side-by-side platform comparison view - Measurement units: Inches, Millimeters, Centimeters - Supports Paperback and Hardcover; White, Cream, Color paper types - Supports left-to-right and right-to-left reading directions - Saves last session automatically - 100% offline — no internet, no account, no subscription --- ### RoyaltyDesk Category: Royalty Tracker for Authors Platform: Windows 10, Windows 11 (Microsoft Store) Price: $2.99 one-time purchase Page: https://zkpublishing.site/royaltydesk Store: ms-windows-store://pdp/?productid=9N355WRZB44Z Product ID: 9N355WRZB44Z Description: RoyaltyDesk is the royalty tracking tool every indie author deserves. Track your book royalties across KDP, IngramSpark, Draft2Digital, Barnes & Noble Press, and Kobo Writing Life in one beautiful offline desktop app. Charts, goals, multi-currency, pen names & PDF reports included. Built by an indie author, for indie authors. Key features: - Log royalties manually from any platform — KDP, IngramSpark, D2D, B&N Press, Kobo - Track eBooks, Paperbacks, Hardcovers, Audiobooks, and KU Page Reads separately - Beautiful dashboard with earnings charts and platform breakdowns - Multi-currency support with automatic conversion and offline fallback - Set monthly and annual income goals with live progress tracking - Milestone celebrations — confetti when you hit $100, $500, $1,000+ - Multiple author profiles — manage all your pen names in one place - Upload book covers for a visual library of your entire catalogue - Export professional PDF and CSV royalty reports — perfect for tax time - Full backup and restore system — never lose your data - 100% offline — your financial data never leaves your device - One-time purchase, no subscriptions, no recurring fees --- ### Archivia Category: Free Book Writing App Platform: Windows 10, Windows 11 (Microsoft Store) Price: Free (donation supported) Page: https://zkpublishing.site/archivia Store: ms-windows-store://pdp/?productid=9P4BMPLQJ147 Product ID: 9P4BMPLQJ147 Description: Archivia is a free professional book writing app for Windows. Write novels, non-fiction, memoirs, series, and more in a distraction-free editor designed specifically for long-form books. Organize into chapters and parts, export print-ready PDFs and EPUBs for KDP and IngramSpark. No subscription, no account required, no internet needed. Key features: - Free forever — no subscription, no premium tier, no feature locks - Professional PDF export ready for KDP and IngramSpark printing - ePub export for Kindle, Kobo, Apple Books with valid ePub 3.0 - Organize books into Parts and Chapters with drag-and-drop reordering - Snapshot history — save and restore up to 20 states of your book - Autosave every few seconds — never lose your work - Automatic Table of Contents with real page numbers in PDFs - Built-in Copyright page builder with ISBN and legal clauses - 10 professional trim sizes including 6×9, 5×8, KDP Standard, A5 - Multiple export fonts: EB Garamond, Lora, Baskerville, Merriweather - Dark and light themes for comfortable writing - Portable .book files — own your writing completely - Native Windows app built with Tauri — fast and lightweight - 100% offline — no internet required ever --- ### PDF Forge Category: PDF Editor and Toolkit Platform: Windows 10, Windows 11 (Microsoft Store) Price: $0.99 one-time purchase Page: https://zkpublishing.site/pdf-forge Store: https://apps.microsoft.com/detail/9PG39LKCDQPQ Description: PDF Forge is a comprehensive local PDF toolkit for Windows. Merge, compress, split, encrypt and edit PDFs entirely on your machine with no internet connection and no file uploads to third-party servers. Fast, private, and owns the full workflow locally. Key features: - Merge multiple PDFs into one document - Compress PDFs to reduce file size without quality loss - Split PDFs into individual pages or ranges - Password protect and encrypt PDF files - Reorder pages with drag-and-drop - 100% offline processing — files never leave your device - One-time purchase with no subscription --- ### Freelancer Expense Tracker and Invoice Maker Category: Business Finance and Invoicing Platform: Windows 10, Windows 11 (Microsoft Store) Price: $1.99 one-time purchase Page: https://zkpublishing.site/expense-tracker Store: https://apps.microsoft.com/detail/9P7BKTS0DCC5 Description: A complete offline business finance tool for freelancers, contractors and small businesses. Generate professional PDF invoices and track expenses in multiple currencies without relying on cloud-based subscription services. All financial data is stored locally on your device. Key features: - Generate and export professional PDF invoices - Drag-and-drop invoice template editor - Multi-currency expense tracking with analytics dashboards - Export financial data as CSV for accountants - Instant JSON backup and restore - Client management and billing history - 100% offline — no cloud sync, no subscription --- ## Android Applications ### AI Creator Studio Category: AI Photo and Audio Enhancement Platform: Android 8.0 and above (Google Play) Price: Free Page: https://zkpublishing.site/ai-creator-studio Store: https://play.google.com/store/apps/details?id=com.zkapps.aicreatorstudio Description: AI Creator Studio is a privacy-focused AI toolkit for Android that runs entirely on-device. Remove backgrounds from photos, enhance image quality and clean up audio recordings without sending any data to remote servers. All AI processing happens locally on your phone. Key features: - Background removal powered by on-device AI - Photo enhancement and quality improvement - Audio noise reduction and cleanup - Completely on-device processing — no data leaves your phone - No account required, no subscriptions, free to use --- ### AirGap Category: Secure Offline Document and PDF Toolkit Platform: Android 8.0 and above (Google Play) Price: Free Page: https://zkpublishing.site/airgap Store: https://play.google.com/store/apps/details?id=com.zkpublishing.privateuitoolkit Description: AirGap is a comprehensive document and image processing toolkit for Android that works with complete privacy. Process, convert and manage PDF files and images entirely on-device with no uploads, no tracking and no data leaving your phone. Key features: - PDF processing and management on Android - Image conversion and manipulation - Document organisation tools - Fully offline — no internet required - Zero data collection or telemetry --- ## Site Pages Home: https://zkpublishing.site/ Apps catalog: https://zkpublishing.site/apps Blog: https://zkpublishing.site/blog About: https://zkpublishing.site/about Support: https://zkpublishing.site/support Contact: https://zkpublishing.site/contact Privacy policy: https://zkpublishing.site/privacy