Our Mission
To enable every fiction writer
to write the best possible version
of the book they have in their heart.
Meet the Founders
Jean
Why does this have to be so hard? Revision shouldn't feel like climbing a mountain alone. After a decade of helping companies build products people actually love to use, Jean obsesses over every detail, and how Story Theorem feels, how it guides you, how it gets out of your way when you need to write.
Jean builds the tools. So you can focus on telling your story.
Emma
Emma lives and breathes books — 161 of them read in 2025 alone! Romance and fantasy hold a special place in her heart, but honestly, she falls in love with stories across every genre. What drives her is seeing the spark in every manuscript — that moment when an author's unique magic breaks through.
Emma brings the heart. She genuinely believes in your story.
The Gap Between Vision and Page
Every author knows the feeling: you have a story burning inside you, characters that feel real, a world that makes sense in your mind. But when you sit down to write, something gets lost in translation.
The book in your head and the book on the page are two different things. Bridging that gap is hard. It requires seeing your own work clearly—something that's nearly impossible when you're deep inside the story.
That's where Story Theorem comes in. We give you the outside perspective you need to see what's actually on the page, so you can make it match to what's in your imagination.
What We Believe
Proven Elements, Unique Expression
Great stories share fundamental elements—the theorem. But how you express those elements is entirely yours. We help you solidify the constants that make stories work, so you can confidently play with the variables that make yours unique.
Clarity Over Overwhelm
Revision can feel paralyzing when you're staring at a 300-page manuscript. We break it down into clear, manageable steps. Solve your story problems one at a time, in the right order.
Every Author Deserves Support
Professional editing is expensive and often inaccessible. We believe quality feedback shouldn't be a luxury. Every writer with a story to tell deserves tools to tell it well.
Better Writers, Not Just Better Books
We don't just fix your manuscript, we help you understand why changes work. Each book you write with Story Theorem makes you a stronger writer for the next one.
The Long Road from Draft to Done
Finishing your first draft is a huge accomplishment. But experienced authors know: that's when the real work begins.
The First Draft
You've poured months or years into getting the story down. It exists. But deep down, you know it's not ready.
The draft is messy, inconsistent, and probably too long. You're too close to see what's working and what isn't.
Developmental Editing
The big-picture stuff: Does your plot work? Are your characters compelling? Is the pacing right?
Professional developmental editors cost upwards of $2,000. Beta readers are helpful but inconsistent. You're often left guessing.
Structural Revisions
Rewriting entire chapters. Cutting scenes you love. Adding scenes you didn't plan. It's exhausting.
Every change ripples through the manuscript. Fix one thing, break three others. It can take multiple passes to get right.
Get to Publication
Polish, publish, promote: three more equations that feel impossible to solve when your editing tools don't talk to each other and publishing means solving problems you never trained for.
How do you even talk to agents or readers to prove your book is worth their time?
Story Theorem helps you see your manuscript clearly when you're too close to judge it yourself. Delta provides developmental feedback that would cost thousands from a professional editor, tracks the ripple effects of your structural changes, and works alongside your favourite editing tools. When you're ready to publish, we'll even provide a roadmap to get your book into readers' hands.
Why "Story Theorem"?
A theorem is something that can be proven. We believe every story has core elements that, when working together, make the story worth reading.
Hit the right beats. Build compelling characters. Create stakes that matter. Deliver on your promises to the reader. When these fundamentals align, your story works. That's the theorem.
Story Theorem helps you check your manuscript: identify what's working brilliantly, what's missing the mark, and how to fix it.
Ready to Bridge the Gap?
Upload your manuscript and Delta will help you see what's really on the page.