Meet Twin — your health,
as a living model.
Twin is a wellness companion. It turns the data you already generate into a personal digital twin, then checks in like someone who’s actually paying attention. It’s our first product — and the first step toward the agentic clinical decision support we’re building.
The version of you that actually went to bed on time.
Twin connects the devices you already wear, notices the patterns, and texts you like a sharp, well-rested sibling — funny, specific, and on your side. No new app to live in: it’s right there in your messages.
“ease up” Say it any time and Twin instantly cools its tone — and keeps it cool.
From the devices on your wrist to a model that checks in.
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Connect the devices you already own
Apple Health, Oura, Whoop, Garmin and more — link a source in a tap, revoke it just as easily.
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Twin builds your health digital twin
Every source is translated into one shared vocabulary, so it all becomes a single, living model of you.
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Twin checks in through the day
A morning brief, an evening wrap, and a nudge only when your data says something worth saying.
Nine sources, one health vocabulary.
Connect what you already use. Twin speaks each one and translates them all into a single shared language.
Apple Health
Google Health Connect
Samsung Health
Oura
Whoop
Garmin
Fitbit
Withings
Dexcom
Worth the notification, or it stays quiet.
It reaches out — you don’t have to remember to check.
Morning brief
A short read on how you slept and what today has room for.
Evening wrap
A gentle close on the day — what moved, what to protect tomorrow.
Only-when-it-matters
A nudge triggered by your data — never noise for its own sake.
Set up in a few messages.
- 1
Say hello
Twin introduces itself and asks what you’re hoping to get out of it.
- 2
Connect your devices
Link the wearables and apps you already use — one tap each.
- 3
Confirm your region
So Twin knows the right emergency and support lines for you.
- 4
Set the tone
Choose how blunt Twin is, and set a safe word to cool it down.
- 5
Pick your rhythm
Contact style and quiet hours — Twin stays silent 22:00–07:00 by default.
- 6
Plain-language consent
A clear recap of exactly what you’ve shared, revocable any time.
A wellness sidekick, not a doctor — and it knows the difference.
Safety is structural, not a feature flag.
| What Twin does | What Twin never does |
|---|---|
| Connects the devices you already own | Diagnoses, treats or prescribes |
| Learns your baselines and spots meaningful changes | Interprets a reading as a clinical result |
| Checks in with a morning brief and an evening wrap | Replaces your doctor, pharmacist or 999/111 |
| Nudges you only when your data says something worth saying | Shares your data without your explicit, per-source consent |
Twin never diagnoses, treats, or prescribes.
If something is urgent, it routes you to real help.
Twin is a general-wellness product, not a medical device. It does not diagnose, treat, cure or prevent any disease. Always seek professional medical advice for health concerns.
Be first to meet Twin.
Twin turns the wearables you already wear into a living model of you, and checks in over iMessage. Join the waitlist and we’ll tell you the moment it’s ready.
Twin v1 launches on iMessage (iOS). Android is on the roadmap — join the waitlist and we’ll tell you the moment it’s ready for you.
Investors — we’re raising our seed round.
Talk to StephenTwin is a general-wellness product, not a medical device. It does not diagnose, treat, cure or prevent any disease. Always seek professional medical advice for health concerns.