For novelists, web-serial and fantasy authors

Write long.
Stay logical.

Logic Writer keeps every character, guild, skill, item and map of your saga in sync while you write, so one wrong detail never slips past your readers.

  • Windows & Mac
  • Offline-first, sync when you want
  • English · Tiếng Việt · 日本語 · 中文 + 50 languages
The Logic Writer line editor with progress bar and session word count
@ Lyra Venn ⚑ Order of the Ember ✦ Ember Strike

The longer your story gets,
the more it piles up.

Hundreds of chapters, dozens of characters, a power system, a map, years of history. One forgotten detail is all it takes for readers to notice.

👤Characters
⚑Guilds
✦Skillswrong detail
🗺Maps

See it in action

A short tour of every part of Logic Writer.

Everything a long story needs

One app for the whole saga

01

Your whole saga, in one place

Every story gets its own cover, split into volumes and chapters. Export the entire project, images and worlds included, as a single ZIP for backups or a new computer.

  • No more scattered files
  • No more fear of losing a manuscript
Story library with covers
02

A focused line editor

Write line by line. A progress bar shows how many lines are left until the next page, with a timer and a word count for every session. Unfinished text is kept for next time.

  • Always know where you are in the chapter
  • Keep a steady rhythm, day after day
Line editor
03

Tags and mentions that stay in sync

Tag characters, places, guilds, skills or items right in the line. Select a name and add it to your story bible with a right click, or type :@ to insert a character. Rename once, and the whole saga follows.

  • Replace a tag across a whole chapter in one go
  • No old name left behind
Right click to add a name to the story bible
04

Know who appears where

The mention panel shows how many chapters in a row each character has been missing. Review mode lists who appears on which line; one click on a line number takes you straight there.

  • No side character forgotten halfway through
  • Plot checks get much faster
Review mode with mentions per line

Your story bible

Every rule of your world, consistent from the first chapter to the last

Characters

Roles, portraits and relationships.

Guilds

Factions and their members.

Skills & power stats

Skills tied to classes, Strength, Mana, Level.

Map Studio

Markers, distances, sub-maps, characters on the map.

World Studio

Countries, oceans and terrain for whole worlds.

Timeline

Your world's own calendar; ages never drift.

Import everything from a single data file, and rename the labels to fit your genre.

05

Tools around your desk

Drafts hold your ideas and scene sketches, slash shortcuts expand your favorite passages instantly, and a built-in calendar and to-do list keep you on track.

  • No idea gets lost
  • Type faster with slash shortcuts
Slash shortcut menu
06

Work with editors and translators

Export a Logic Writer pack and choose exactly which volumes they may edit. They open it in the free Companion app, suggest edits or translations with a shared glossary, then send the pack back. You accept or reject every suggestion.

  • Your original stays safe
  • The final say is always yours
Review inbox with merge and reject
07

Export your manuscript

Export a single chapter or a whole volume to DOCX, EPUB, PDF or TXT, with your scene breaks preserved. Send it to a publisher or post it online right away.

DOCXEPUBPDFTXT
Export menu
1 fileOne app, no installer maze
Win + MacSame project on both
EverywhereOffline on desktop, synced to mobile
50 languagesEnglish, Vietnamese, Japanese, Chinese and more

Multilingual

Write in your language. 50 languages supported.

The interface, menus and story bible labels follow your language, and you can switch at any time without reloading your project. Write your story in any language, including right-to-left scripts and CJK.

English Tiếng Việt 日本語 简体中文 繁體中文
EspañolPortuguêsFrançais Deutsch한국어Русский Bahasa IndonesiaไทยItaliano TürkçePolskiالعربية हिन्दीNederlandsFilipino Bahasa MelayuУкраїнська+ 30 more

Logic Writer Online

Your saga on every device. Write anywhere.

The desktop app works fully offline. Online membership adds live sync between your devices and a mobile writing space, so the story never waits for you to get back to your desk.

Included free for 1 year with every Founder license (a $60 value)

  • Live sync across devicesWindows, Mac, phone and tablet stay in step. Close the laptop, open your phone, and continue on the same line.
  • Write on mobile, everywhereOn the train, in a café, in bed: write chapters and check your story bible from your phone.
  • Your story bible in your pocketCharacters, guilds, skills, items and maps are there whenever a detail comes to mind.
  • Always an up-to-date copyEvery synced device holds your latest work, so a lost or broken laptop does not mean a lost manuscript.

Pricing

Become a founder

One-time payment. Early supporters keep their license for life and help shape what comes next.

World Map Editor

The map and world builder on its own.

$99one-time

  • Standalone World Map Editor, lifetime license
  • Map Studio: markers, distances, sub-maps
  • World Studio: countries, oceans, terrain
  • Windows and Mac
  • Offline only (no Online membership)
Buy World Map Editor
Best value

Founder + World Map

Everything, with the map editor for life.

$149one-time

  • Everything in Founder
  • 1 year of Logic Writer Online ($60 value)
  • World Map Editor, lifetime license
  • Save $49 compared with buying both
Become a founder + map

Card and PayPal checkout by Lemon Squeezy. 14-day refund. Prices in USD.

Prefer a bank transfer?

Transfer the plan price to the account below and use the exact transfer note, so we can match your payment to your email. Your license arrives by email within one business day.

BankVietcombank (Joint Stock Commercial Bank for Foreign Trade of Vietnam)
Account number0501 000 151853
Account nameTRUONG QUANG KHAI
BranchCu Chi, Ho Chi Minh City
SWIFT / BICBFTVVNVX

Transfer note (copy exactly)

{email} become founder

Amount: $99 (in Vietnam, transfer the VND equivalent at the day's Vietcombank rate). International transfers: send USD by SWIFT; bank fees are paid by the sender.

Questions

Which systems does Logic Writer run on?

Windows and macOS. It is a single app file; your projects open on both.

Where is my writing stored?

On your own computer by default; Logic Writer works fully offline. If you turn on Logic Writer Online, your projects are also synced so your other devices and the mobile app can open them. You can export the whole project as one ZIP at any time.

Is this a subscription?

No. Every plan is a one-time payment and the desktop license is yours for life. The Founder plans include the first year of Logic Writer Online; after that you can renew Online if you want it, and the desktop app keeps working offline either way.

Which languages does Logic Writer support?

50 languages, including English, Vietnamese, Japanese, Simplified and Traditional Chinese, Korean, Spanish, Portuguese, French, German, Russian, Indonesian, Thai and Arabic. You can switch the interface language at any time, and write your story in any language.

What is the World Map Editor?

The map and world builder (Map Studio and World Studio) as its own app, for authors and game masters who only need maps. It works offline and is included for life in the Founder + World Map plan.

Can I pay by bank transfer?

Yes. Use the bank details above with the exact transfer note (your email plus the plan), and we email your license within one business day.

Do my editors need to buy it too?

No. Editors and translators use the free Companion app to read the pack you send and suggest changes.

Can I get a refund?

Yes, within 14 days of purchase. See the refund policy.

How do I get help?

Email roo.adm@gmail.com. We usually reply within two business days.

Write long. Stay logical.

Your saga deserves a tool that remembers every detail.

Get the Founder license