Core knows you.
It reads. It thinks. You write better.
A partner that refines your writing.
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Core is a macOS app for long-form writing, featuring an AI editor that reads your entire project and an AI research tool that cites only verifiable sources — never fabrications. Built for novels, dissertations, and essays.
AI forgets.
That’s why it fails.
Chat AI doesn’t remember what you shared last time. It only reacts to what you paste right now.
AI that reads
everything you write.
AI built for writing. Just save your manuscripts and notes in Core.
The AI reads everything — and understands it.
Editor
Supports both vertical and horizontal writing. Typewriter mode included.
Ask anything.
It knows the answer.
Core doesn't just read the page in front of you. It analyzes every file in your project — themes, style, patterns you didn't notice yourself.
Think of it as an editor who never forgets a scene, a character, or a thread you planted three chapters ago.
The chapter leans heavily on visual description. In Staves I–II you used sound — creaking hinges, bell tolls, the chains Marley drags — to pace the scenes.
Your notes flag "uncanny soundscape" as a theme. Try threading more auditory detail back in.
Catalog of lamps, chandeliers & pipe connections for gas lights
LCA c. 1860 trade catalog with roughly 200 engraved plates of Victorian lighting fixtures.Plates are labeled with size and price in English currency; some show elaborate wrought-iron detail.
Real sources.
Zero fabrication.
Core never fabricates sources.
Ask a rough question and the AI Librarian will dig through context to surface verified materials — drawn from library collections and archives around the world.
Powered by APIs at the Library of Congress
Full screen. Pure writing.
One click hides everything but the editor.
Just you and the words.
Marley was dead, to begin with. There is no doubt whatever about that. The register of his burial was signed by the clergyman, the clerk, the undertaker, and the chief mourner.
Scrooge knew he was dead? Of course he did. How could it be otherwise? Scrooge and he were partners for I don’t know how many years. Scrooge was his sole executor, his sole administrator, his sole assign, his sole residuary legatee, his sole friend, and sole mourner.
Oh! But he was a tight-fisted hand at the grindstone, Scrooge! a squeezing, wrenching, grasping, scraping, clutching, covetous, old sinner!
Your story.
One glance.
Chapters, notes, references — a long manuscript has a lot of pieces. Core's file tree keeps everything where you can find it.
Reorder and restructure with drag and drop. Your mental outline, on screen.
Every word counts — even the ones you delete.
A day of cutting 5,000 words is still a day of progress.
Every struggle, every revision — Core tracks it all.
Writing Progress
Sun, Feb 1, 2026
Activity (past 6 months)
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Your words stay yours.
Your manuscripts never leave your machine, and they're never used to train AI.
Everything is saved automatically — no draft left behind.
Your manuscripts are
never used for training.
Your work belongs to you. Nothing you write is ever used to train AI.
Your data stays
on your machine.
Stored on your computer, not in the cloud. No risk of data leaks.
Never lose
an idea.
Every reference you collect and every draft you write is automatically saved.
Find the plan that fits your pace.
Every plan includes all features. Pick your AI usage level.
Change or cancel anytime.
Pro
ProFor writers who write every day.
- Sufficient AI usage for daily writing
- All writing features
- All AI features
- Import (Word, Scrivener) & Export (PDF, Word, EPUB)
No payment due today
Max
MaxWrite without limits, in total immersion.
- 5x the AI usage of Pro
- More advanced reasoning
- Deeper context understanding
- "Deep Think" mode for research
Q.Is there a free trial?
The Pro plan includes a 14-day free trial. You can try all features during the trial period.
Q.What's the difference between plans?
The Pro plan provides sufficient AI usage for daily writing. The Max plan offers 5x the AI usage plus deeper and broader reasoning across all AI features.