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Leo in one paragraph
A calm, private health app.
Leo is a free iPhone app for people living with chronic and complex conditions. It keeps medications, symptoms and the conditions you live with in one place, with a hub for each condition, reports to bring to appointments, and sharing with a trusted Inner Circle that the person controls. Leo tracks; it does not diagnose or give medical advice. It was started by a paramedic who lives with chronic conditions.
- Founded
- 2024
- Based in
- United States
- Runs on
- iPhone, iPad, Apple Watch and Mac
- Price
- Free. Inner Circle sharing is $0.99 per person per month
- Status
- Public beta
- Category
- Health & Fitness
Key points
Four things worth knowing.
Built around conditions
People pick their conditions and Leo builds a hub for each, from migraine and POTS to Crohn's, epilepsy and rare conditions set up by hand.
Private by design
Health details are encrypted on the phone with a key unique to each person before they're saved. Built to the HIPAA Security Rule's technical safeguards, with a signed BAA with Google Cloud.
No AI on your data
Logs are never sent to or used to train a model. Patterns in the app are plain counts and charts.
Sharing on the person's terms
Inner Circle lets a partner or friend see chosen categories, and nothing else.
Screens
Straight from the real app.
These are screenshots of Leo with sample data, not mock-ups. Need full-size files in light or dark mode? Ask and we'll send them.
Need more? get in touch.
Interviews, screenshots, logos or a fact check.






