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Our Story

Built by a Patient, for Patients

The story behind the health management app that makes managing your health journey simple and rewarding.

Our Mission

Making Health Management Accessible for Everyone

To empower individuals and families to take control of their health journey through intuitive technology, gamification, and connected care.

Why I Created Leo

Leo was born out of personal experience. During one of many hospital visits — IV in my arm, treatments running — I found myself trying to remember what medications I had taken, how I felt the day before, what had changed, what helped, and what didn't. That's when I realized something: my health information was everywhere, but my story wasn't anywhere. Mental health lived in one app. Medications in another. Symptoms in my notes. Appointments on my calendar. Nothing was connected. And every time a doctor asked me a question, I was relying on memory instead of data. So I started building Leo — not as another health tracker, but as a single hub where mind and body come together. A place where medications, moods, symptoms, vitals, habits, and patterns all live side by side, building a complete picture of your health over time. Whether you log everything or just one thing, Leo holds your health story for you. It works on your best days and your hardest ones, and it's designed to be as simple or as detailed as you need it to be. Leo is being built by someone who actually uses it every day — someone who knows what it's like to be on the patient side of the screen. That perspective shapes every feature we build.
M

Mark Sheffield

Founder & CEO

Our Values

Accessibility

Health management should be simple and available to everyone, regardless of technical ability.

Privacy First

Your health data belongs to you. We use bank-level encryption and never sell your information.

Family-Centered

Health is a family affair. Leo connects parents, children, caregivers, and providers.

Joy in Health

Managing health shouldn't feel like a chore. Gamification makes daily health tasks rewarding.

Meet the Team

Click on a team member to learn more about them

Special Thanks

To our amazing beta testers and contributors who helped shape Leo

Interested in becoming a beta tester? Check back soon for opportunities!

Join Us on This Journey

Be part of a community building the health app we all deserve.