You Shouldn't Need to Be a Data Scientist to Use a Spreadsheet.

Our story starts with a simple truth: for most people, the modern spreadsheet is a source of frustration. It’s an intimidating grid of endless cells, governed by inscrutable formulas and complex features that feel designed for someone else.

If you’ve ever felt stuck, overwhelmed, or just plain annoyed trying to manage a budget, track sales, or organize a project—you’re not alone. You’re the reason we exist.

Headshot of John Sully, founder of Sum Buddy

A Note from Our Founder, John Sully

"Hi, I'm John. I spent seven years on the Microsoft Excel team, and I'll let you in on a secret: I can barely use VLOOKUP."

"During my time there, I saw firsthand how spreadsheets became incredibly powerful for a small group of experts. But in the process, they left the other 99% of us behind. Big companies are held hostage by their power users and legacy code—they can't adopt newer, easier paradigms without breaking things."

"When the AI revolution began, the response was disappointing. The industry just tacked a chatbox onto a 30-year-old grid and called it a day. That doesn't solve the core problem."

"I founded Sum Buddy to do what the incumbents can't: rebuild the spreadsheet from the ground up with AI at its core. We're building a patient, helpful partner that does the tedious 'janitorial work' for you, finally making the power of spreadsheets accessible to everyone."

Our Mission: Smart Tools, Not Complicated Rules

We believe you shouldn't have to learn a new language to get answers from your data. Sum Buddy is built on a different philosophy.

We Build for Humans

Ask questions in plain English, not formulas. Instead of fighting with pivot tables, just ask, "What was our average sale price in July?"

We Automate the Annoying Stuff

Our "Beautify Sheet" feature is our magic button. One click transforms messy data into a clean, professional, and easy-to-understand report.

We Prioritize Trust

We are obsessed with precision and accuracy. Our goal is to be a tool you can rely on for the important things, from your business to your taxes.