
Seizure and medication tracking for pets
When the moment passes, log the details
Leu keeps seizure events, medication schedules, and your pet's important details all in one place
For recordkeeping only. Leu does not replace emergency or veterinary care.

After a seizure, Leu is there when you're ready
When things calm down, Leu helps you log what happened
Capture the time, duration, and any other details about a seizure. Leu keeps it all together for when you need the full story.
Your pet's care, organized
Seizures and medications. Together in one app.
Move between your pet's overview, seizure history, and medications without piecing information together across notes, calendars, or memory.



Seizure history
Capture the event after it ends.
Record when a seizure happened, how long it lasted, and the context you want to remember. Leu keeps each entry in a simple chronological history.
Timing · Duration · Notes
Medication rhythm
Built for your routine.
Track scheduled and as-needed medications, see what's due, and record what was actually given. Leu supports the rhythm of daily care without turning it into a streak or score.
Schedules · Reminders
Ready to revisit
Your pet's history, ready when you need it.
At your next vet appointment, review dated seizure events and medication doses without trying to reconstruct weeks or months from memory.

Privacy and Trust
Leu has no ads, no cross-app tracking, and no third-party analytics. History stays on your device and, when you enable sync or sharing, in your iCloud account through Apple CloudKit.
Read Leu's privacy policyNamed for the dog who started it all
Leu was built for her

At 13 months old, she had her first seizure. Over the next 15 months, caring for her became a daily exercise in precision: medications, dosing schedules, symptoms, notes, and the ongoing challenge of knowing which details mattered.
We needed to give her the right medication, at the right dose, at the right time—twice a day, every day. We also needed a reliable way to record what we were seeing and share a clear picture of her health with her veterinary team.
So we built Leu.
What began as a tool for managing her care has grown into an app for keeping medications, seizures, notes, and missed doses in one place. Leu helps pet parents keep a clear record they can review and share with their veterinarian.
Today, our crazy, goofy Shiba is more than 200 days seizure-free.
Leu was built for her, but it’s for anyone caring for a pet with ongoing or complex health needs. Because when your pet needs a little more, having the right information at the right time can make their care—and your life—feel a little more manageable.


Leu for iPhone
