Know your real age Change it
State AI reads your blood work, workouts, watch, and meals, and turns them into a plan: what to do next, priced in years1
Your watch scores your sleep. Your lab mails a PDF. Your calorie app counts lunch. None of them tells you what to do. State AI reads every signal as one age, turns the age into a plan, and coaches you through it. Put in the days. The number keeps score.
De-aging levers
Four levers, one number
Every signal State AI reads lands in one of four levers. Each shows the years it adds or removes, and each opens its own page in the app
01 · Blood biomarkers
One lab photo moves your age most
State AI reads every marker and scores how fast you're aging. A routine panel is all it needs
02 · Fitness
The lever you can train up
Stamina moves your age more than anything else your watch tracks, and the pace of an ordinary walk backs it up. Train it, and a few months of work show up here
03 · Heart & recovery
Your recovery, read overnight
State AI reads your heart's recovery against your own baseline. Watch it climb as your weeks ease up
04 · Body composition
Body fat, measured for your age
State AI places your body fat on the healthy range for your age and sex, and ties the trend to what you eat against what you burn. Photograph a plate and it counts here
Day one
No new hardware
Nothing to wear, ship, or charge
Your iPhone and the watch you already own record every signal State AI needs. Connect Apple Health, and your Health Age appears in minutes
VO₂ Max
41.2 ml/kg/min
Resting heart rate
52 bpm
Heart rate variability
68 ms
Walking speed
1.42 m/s
Body fat
18.4%
Meals
30-day pattern
Blood panel
9 markers
HEALTH AGE
24.0
±1.2 yr · 99% confidence
Your Plan
What to do next, priced in years
The plan reads every lever and keeps a short list: the actions that move your age most, each priced by the same projections the charts run. One tap turns any of them into a habit with daily check-ins2
Top actions this week
Easy-pace cardio
3× a week, 30 minutes
8,000 steps a day
Up from your 6,100 average
Protein at every meal
Steady through the week
Easy-pace cardio
Tracked habit · 24 weeks
Longevity Coach
A coach that has read all of it
Meals, daily scores, bloodwork, every lever. One coach reads them together, cites what it used, and shows its work
Why is fitness adding two and a half years?
Your VO₂ Max slid from 44 to 41 since March. That's most of the +2.5 yr. Two easy-pace sessions a week reverses a drop like this for most people, and your recovery has the headroom for it.
Between readings
Your age moves in months. The loop keeps the days honest
Every card feeds a lever, no homework. Log a meal with a photo, and the scores read themselves
Five daily scores
Recovery, sleep, strain, stress, energy. The short game behind your levers
Scan meals in seconds
Photograph the plate. Macros, fiber, and the monthly pattern follow
Screenings on time
Age-banded checkups and an early eye on your signals, quiet until they aren't
State AI
now
Blood pressure check due
Last reading 14 months ago. Guidelines say yearly from your age band. Two minutes at any pharmacy.
State AI
2d
HRV trending down this week
Three short nights in a row. Worth an easy day before it compounds.
Everything else
And the rest
Your data stays yours
We sell nothing about you, show no ads, and use your health data only to run your numbers and coach you
Price
Run the math
State AI
Free on day one
vs. rings, bands, lab memberships, and test kits
State AI
Free on day one
The usual route
Rings, bands, lab memberships, test kits
Works with the Apple Watch you already own. Nothing to buy, ship, or charge.
Oura: a $399+ ring, plus $69.99 a year. WHOOP: from $199 a year, and you never own the band.
Health Age on day one, read from your phone. No blood needed to start.
TruDiagnostic: $499 a test. Tally Health: $249, then 3–4 weeks of waiting.
Bring the tests you already have. Photograph any lab report and it's tracked, free.
Function Health: a $365-a-year membership. InsideTracker: $489 to get started.
One coach that reads your meals, sleep, labs, and health age together.
Each rival coach sees one slice, the band or the labs. Bevel meters its AI with credit packs.
Free to start. Pro has a 3-day trial.
A ring, a membership, or a kit in the mail before your first reading.
Your first reading costs nothing. It comes from the phone you already own3
FAQ
One number for how you're aging, computed from signals your iPhone and Apple Watch already record: VO₂ Max, resting heart rate, HRV, walking speed, body composition, each weighted by how reliable it is for you. It arrives with a confidence band, and it moves when the inputs do.
Blood biomarkers, fitness, heart & recovery, and body composition. Each lever shows the years it adds to or removes from your Health Age and the evidence behind that. Fitness covers both your trained stamina and how you move through an ordinary day. Meals still count: what you eat feeds the age math and shows up through body composition and blood, it just isn't a separate dial.
The plan ranks the few actions that would move your age most and prices each in years, using the same projections the charts run, over 12 weeks. Actions it can't price yet show what they move instead. One tap turns an action into a tracked habit with daily check-ins, and a heatmap of kept and missed days keeps the record honest.
A wearable-only age is an estimate, and State AI labels it that way. Photograph one routine blood panel and it computes PhenoAge, a published, mortality-calibrated blood clock4, then blends it into your Health Age. That's the same class of math longevity clinics sell, run on a panel you may already have.
No. An iPhone alone covers the Health Age basics: it clocks your walking speed from your pocket, no effort. A Watch adds VO₂ Max, overnight heart data, and sleep depth, which sharpens the estimate and unlocks more levers.
Photograph a recent lab report: photos, screenshots, or a PDF all work. State AI reads about 60 markers, and the nine from a standard panel unlock PhenoAge. Any lab works, including a panel from last year.
No. Health Age, the levers, and the daily scores are wellness estimates, not a diagnosis1. Heart-rhythm, apnea, and ECG alerts come from Apple's FDA-cleared features, and State AI labels them that way. For anything that worries you, export the doctor summary and see a professional.
Two AI meal logs: scan one meal with the camera, describe another in text. Food search, exercise, water, and weight logging stay unlimited. The coach requires an account.
Unlimited AI meal logging and the Longevity Coach, with a 3-day free trial.
iPhone only for now.
Meet your real age
Connect Apple Health and see your Health Age today
Free to try. No account needed5
- State AI is a wellness product, not a medical device. Health Age, the four levers, the plan, and the daily scores are estimates built from consumer sensors and the information you enter. They are not a diagnosis and are not intended to diagnose, treat, cure, or prevent any disease. Heart rhythm, sleep apnea, and ECG notifications come from Apple's own cleared features on your device, not from State AI, which only displays what your device reports.
- Every figure in the plan comes from the same projection curves the charts run, priced over 12 weeks. Each one is a model of your own inputs, not a forecast or a promise, and results differ from person to person. Actions the engine cannot price yet show what they improve instead, such as stamina or walking pace.
- Competitor names, products, and prices are as those companies published them in July 2026 and may have changed since. All trademarks belong to their owners. No affiliation with or endorsement by any of them is implied.
- PhenoAge is a published, mortality-calibrated blood clock (Levine et al., Aging, 2018), computed here from the nine markers on a standard panel. State AI runs the arithmetic on lab results you supply. It does not perform, order, or interpret lab tests, and reading a marker as out of range is a prompt to speak to a clinician, not a finding.
- State AI is free to download, and your first Health Age reading costs nothing. Pro is an auto-renewing subscription, monthly or yearly, with a 3-day free trial for new subscribers. Payment is charged to your Apple Account at confirmation of purchase, and the subscription renews unless auto-renew is turned off at least 24 hours before the current period ends. Manage or cancel it any time in your Apple Account settings.
State AI does not provide medical advice. Always seek the advice of a physician or other qualified health provider with any question about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your local emergency number. Apple, Apple Watch, Apple Health, and iPhone are trademarks of Apple Inc., registered in the U.S. and other countries.