Symptoms in one place
All of it, together.
Symptoms, flares, medications and every condition you live with, in one app. No more five apps and a notes file that never line up.


Symptoms
Find the word you need.
Log one symptom or several at once. Conditions you track add their own symptoms to the list.
- A large symptom library grouped by body system
- Severity with a slider, not a form
- Tag triggers and what helped
- Add your own symptoms when the list misses one


- Brain & nerves
- Gut
- Breathing
- Heart
- Muscles & joints
- Skin
- Mental health
- Hormones
- Bladder & kidneys
- Eyes
- Immune
- Reproductive
Episodes and flares
Each kind of bad day has its own screen.
A migraine attack, a lupus flare, a crash after exertion or a CRPS limb check. Each one asks only what matters for it.
One calendar
Every condition, one month.
Living with CRPS and fibromyalgia, or POTS and EDS? Both sit on the same calendar, so you can see the whole month.
- Doses, symptoms, flares and appointments on the same days
- Tap a day to see everything you logged
- Each condition hub shows its own counts and trends


What ties it together
One app, one record.
Symptom library
Search or browse by body system.
Body map
Tap where it hurts, front or back, and which side.
Triggers
Tag what came before, and see how often symptoms followed.
Medications
As-needed doses with how much they helped.
Calendar
The month at a glance.
Reports
All of it, ready for your next appointment.
Apple Watch
Quick logging from your wrist.
Condition hubs
A hub for each condition, side by side.
Try Leo in the beta.
Leo is free on iPhone. Join the beta and tell us what you would change.






