
The Writing App That Makes You Better
A professional manuscript editor. An AI that reads your entire book. A personal writing coach that levels you up. All in one app.
Free during beta. No credit card required.
See How the Coach Works





Everything You Need to Write — and Improve
Most writing apps help you organize. Some add AI. Only Polyz teaches you to write better.
Your Manuscript, Organized
Binder, corkboard, outliner — the writing workflow trusted by professionals. 50+ editor extensions, multi-format export, snapshots, and automatic backups.
AI That Actually Reads Your Book
Chat with an AI that has semantic access to your entire manuscript. Ghost text, inline editing with diff review, story bible generation, and consistency checking.
A Writing Coach in Your Editor
Diagnostic assessments, adaptive lesson plans, exercises graded against professional rubrics, and Socratic coaching chat. Track your skills across 13 categories.
A Writing Coach That Actually Teaches
Not grammar checking. Not AI slop. A structured coaching system that evaluates your writing and helps you improve — one skill at a time.
Take the Diagnostic
Write a short piece. The coach evaluates 13 skill areas.
Get Your Plan
A 30-unit curriculum adapts to your weakest areas.
Study the Craft
Each unit teaches a specific skill with examples from published fiction.
Write the Exercise
Apply what you learned. Write directly in the editor.
Receive Grading
Line-level feedback against a professional rubric. No hand-waving.
Revise & Improve
Rewrite with targeted feedback. See your score improve.
Level Up
Earn XP, unlock skills, and track your growth over time.
“Line-level feedback on every exercise. Your comma splices don't stand a chance.”
Built for Serious Writers
Every tool you need to write, organize, and polish a professional manuscript.
Rich Text Editor
50+ Tiptap extensions — pagination, citations, footnotes, track changes, comments, bookmarks, and more.
Interactive Map Maker
Build visual maps of your fictional world. Place locations, draw paths, and link to manuscript scenes.
Story Bible
Auto-generated character profiles, locations, and timelines — kept consistent as you write.
Semantic Search
Find passages by meaning, not just keywords. Ask 'where does the protagonist hesitate?' and get results.
Multi-Format Export
PDF, DOCX, EPUB, Markdown, TXT — compile entire manuscripts or selections with full formatting control.
Snapshots & Backup
Per-document version snapshots and full project backup. Never lose work again.
AI Generation
Ghost text continuations, inline editing with diff review, and AI-powered content generation — all grounded in your manuscript.
Consistency Checking
AI scans for continuity errors across your manuscript. No more blue eyes in chapter 3 and brown in chapter 12.
Be the First to Try Polyz
Join the waitlist and get early access when we launch. Free during beta — no credit card required.
Free during beta. Early adopters get 50% off their first year.