Now available

An always-on, super-intelligent health coach.

Hi, it's Ryn. I watch your sleep, your activity, your heart rate, and your blood work when you share it. I notice when something starts drifting, usually before you would, and tell you what to do about it. Right in WhatsApp, day and night.

See how Ryn works
Sleep
Your body has been running hot three nights running. Here is what to change tonight.
Metabolic
Your morning blood sugar has been quietly climbing for six weeks. Let's catch this now.
Fitness
Strength session for today, dialed back to match what your body can actually handle this morning.
Why AI

What a human coach cannot give you, an AI coach can.

Most health tools track. Most chatbots wait for you to ask. Ryn is different on four specific dimensions.

01
Super-intelligent.
Ryn picks the best AI model for every question you ask. Heavy reasoning when the answer matters. Fast models when you just need a quick reply. You get the smartest answer every time, without thinking about it.
02
Knows every part of your health.
Sleep, nutrition, training, hormones, your heart, your blood sugar, your immune system. One coach holds all of it at once and connects the dots that doctors usually see one at a time.
03
Always available. Never forgets.
On WhatsApp, day or night. Ryn remembers every conversation, every reading, every goal you've shared. No starting over, no re-explaining, nothing lost.
04
Gets smarter every week.
As the AI models behind Ryn get better, Ryn gets better with them. The Ryn you have a year from now will be meaningfully smarter than the Ryn you have today.
What you actually get

Coaching that shows up across every part of your health.

Ryn does not just push you on one thing. Sleep affects training. Training affects nutrition. Your blood work changes the plan. Here is what real coaching across your whole life looks like, in Ryn's actual voice.

Sleep
R

“You've felt off all week but couldn't say why. Your body has been running hot since Sunday. Three nights of poor recovery in a row, the kind of pattern your tracker shows but no one's connecting. Here is what to change tonight.”

Nutrition
R

“You're putting in the gym work but the muscle isn't showing up. You're short about 30 grams of protein a day. Here are three swaps that actually fit your week, not a meal plan you'll abandon by Wednesday.”

Fitness
R

“You woke up wanting to lift heavy. Your body isn't ready for that today. Pushing now sets you back a week. Here's a session that gets the work in without the cost.”

Metabolic health
R

“Your morning blood sugar has been quietly climbing for six weeks. Nothing your doctor would flag yet, but the kind of thing that becomes a real problem in two years if no one's watching. Let's get ahead of it now.”

Cardiovascular
R

“Your resting heart rate has been 8 beats higher than normal for a week. Could be the wine on Friday, the late nights, or you're fighting something off without knowing it. Here is how to tell, and what to do about each.”

Immune and recovery
R

“Your body is showing the early signals of getting sick. The kind of thing you'd notice tomorrow if you were paying attention. Skip today's hard session, double the sleep, and you'll dodge the worst of it.”

Proactive, not reactive

Ryn watches the curve. Catches things before you would.

Most health tools wait for you to ask. Most doctors see your numbers once a year. Ryn watches the trend every day, so the small signals get caught while they are still small.

Days, not years
Your body started showing strain almost two weeks before you'd have felt tired. Ryn told you to take a recovery day before you knew you needed one.
Drift, not crisis
Your cholesterol number came back at 95. Ryn wanted it under 80, and here is exactly what to change so the next test comes back where you want it.
Patterns, not points
You and your friend eat the same diet. Your numbers keep creeping up and his don't. Ryn knows why. Your genes process saturated fat differently, and your blood work proves it.
How it works

Set up in minutes. Coached from day one.

01
Connect your data.
Apple Health, Oura, Whoop, Strava, and your blood work whenever you share it. A few minutes to set up. Ryn starts with a full picture of where you are.
02
Tell Ryn your goals.
Over WhatsApp, in your own words. No forms. No checklists. Ryn turns what you say into a plan that actually fits your life.
03
Get proactive coaching.
Ryn watches the numbers every day, not once a year. The moment something starts drifting, you hear about it. Usually a couple of weeks before you'd have noticed yourself. You don't have to remember to open an app.
04
Share your blood work.
Upload your blood test results and Ryn pulls out every number, tracks how each one is moving over time, and puts it to work in your plan. The numbers your doctor reads once a year, watched continuously and explained in plain English.
Connects the dots

One coach who sees the whole picture. The way your doctor wishes they could.

Your sleep doctor does not know your training load. Your trainer does not see your blood work. Your GP sees you for ten minutes once a year. Ryn holds all of it at once and connects things your doctors only see one at a time.

Genes meet your medicine cabinet
There is a gene called CYP2C19 that controls how your body breaks down certain medications, including some blood thinners. If you carry the slow version, the standard dose either does not work or builds up too high. Ryn knows your version, knows what you take, and tells you which conversations to have with your doctor.
Bad sleep meets your immune system
Three nights of poor sleep cuts your immune defense in half. Ryn sees your sleep slipping, sees flu season ramping in your area, and tells you to bank an extra hour tonight before you get blindsided next week.
Your training load meets your hormones
Train too hard for too long and your body's stress hormone stays elevated, which kills sleep, which kills recovery, which kills the next session. Ryn watches all four lines and tells you when to push and when to back off, before the wheels come off.
Your diet meets your genes
You eat the same as your friend but your cholesterol creeps up and theirs does not. There is a gene that affects how your body handles saturated fat, and you carry the version that handles it less well. Ryn knows that, sees your numbers, and tells you exactly which foods to swap.
Early users

What people are saying.

“Ryn caught a pattern in my recovery data that my Oura app completely missed. Three weeks of training stress showing up as bad sleep. I thought I had insomnia.”

Early user
Strength athlete, Vancouver

“I uploaded three years of blood work. Ryn pulled every marker, showed me the trends, and told me exactly what questions to bring to my next GP appointment.”

Early user
Physician, Toronto

“It is the first health tool that actually meets me in WhatsApp. I do not have to remember to open an app. Ryn just shows up when it matters.”

Early user
Founder, San Francisco
Integrations

Connected to your world.

Your data, in one place. Ryn uses it all.

Available now
WhatsApp
Where Ryn lives day to day. Recommended.
Ryn App
iOS app with full chat history and health sync.
Apple Health
Steps, heart rate, sleep, recovery, workouts.
Strava
Run, ride, swim. All your activities.
Blood work
Upload your blood test results. Ryn pulls every number and tracks how each one is moving.
Coming soon
Oura
Soon
Sleep stages, recovery, daily readiness.
WHOOP
Soon
Recovery, strain, and sleep coaching.
Garmin
Soon
GPS, training load, and performance metrics.
Withings
Soon
Body composition scale.
Pricing

One coach. Every area of health. $29 a month.

Free for early users. Cancel any time. No contracts. Your data is yours to export or delete whenever you want.

It is like having a team of health specialists personally dedicated to you.

One coach. Every domain. Always on. Right in WhatsApp.

Your health data is never sold or shared.