Health Plan
A plan you can understand and adjust.
Your profile, goals, recent data, and evidence come together in one set of targets. The reasoning stays visible, and you approve every change.
Personal health Agent for iPhoneYour health doesn't happen in a chat.
Your health doesn't happen in a chat.
It happens every day.
Human Codex remembers weeks of sleep, vitals, meals, fasts, and training — then shows you what changed, what deserves attention, and the next step.
A generic chat answers the prompt you paste today. Your Agent knows the pattern — and can act on it.
Continuity changes the answer
Your data stops being a pile of numbers.
Start with today's Health Score, understand the pattern behind it, then move from insight to a decision you can act on.
TodayPatternAction
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From today's signal to the pattern.
Ask for a review of your day and your Agent reads it against the weeks behind it — nutrition, movement, hydration, fasting — then tells you exactly what to adjust tomorrow.
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Your biomarkers, read in context.
Blood pressure, glucose, and ketones sit beside the steps, workouts, heart signals, and sleep Apple Health already provides. Log a reading and your GKI updates with it, so metabolic changes are easy to read together.
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Know what your day still needs.
See macros, hydration, and caffeine together before the day is over. Less arithmetic, fewer disconnected logs, and a clearer view of the choices still in front of you.
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Ask what to eat next.
After training, ask how to hit your protein target. The answer comes from your remaining macros, your fast, and your goal — concrete foods and grams, not generic advice.
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Describe your week. Get a routine.
Tell your Agent your goal, your equipment, and the time you actually have. It builds the split, schedules each session, and reshapes it when your week changes.
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Turn the plan into a session.
At the gym, sets, prescribed rest, and progress live in one focused session — logged as you go, ready to shape what your Agent suggests next.
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Know where you are in the fast.
Follow the phase, not only the clock. Add glucose or ketone readings when you have them and estimated context becomes biomarker-verified, with GKI tracked alongside.
Your day starts with context.
Human Codex reads sleep, HRV, resting heart rate, activity, and recovery against your own baseline. The score is the starting point; your Agent explains the story behind it.
Apple Watch
The loop continues on your wrist.
Your score, your fast, and the session live on Apple Watch — glanceable between sets, no phone in hand. Everything you log syncs back into the same history.
Optional — the iPhone app works without it.
Deeper context
When the decision matters, arrive prepared.
Turn your ongoing data into a plan you understand — and complex reports into better questions for your next appointment.
Labs
Bring better questions to your appointment.
Turn a lab report into a clear summary, the markers worth your attention, and questions to discuss with a licensed professional — without pretending to diagnose.
Why trust it
Clear about what it knows — and what it doesn't.
Human Codex connects your signals to clinical sources, cites the evidence, and never pretends to replace a licensed professional.
Built on Apple Health
Reads the signals you already generate through HealthKit — iPhone, Apple Watch, and any wearable that syncs to Apple Health: Garmin, Oura, WHOOP, Fitbit. Only with your permission, only what you authorize.
Grounded in evidence
Recommendations are grounded in your data and clinical evidence — PubMed and clinical guidelines — cited so you can check the source yourself.
Private by design
Your health data is never sold and never used for advertising. A significant portion is stored locally, on your device.
Pricing
Work with your Agent every day.
Tracking vitals, nutrition, fasting, and training is free. Pro unlocks the Agent — monthly or annual, and eligible new subscribers get 7 days of full access before the plan renews.
Annual
$99.99/ year
About $8.33 a month
Monthly
$14.99/ month
Cancel anytime
Start your free trialPrices in USD. Billed through the App Store. Cancel anytime from your App Store subscription settings.
FAQ
Questions, answered.
Is Human Codex medical advice?
No. Human Codex provides decision-support information, not medical advice. Always consult a licensed healthcare professional before changing your diet, exercise, supplementation, or medication.
What do I need to use it?
An iPhone with Apple Health. An Apple Watch makes signals like HRV, resting heart rate, and sleep much richer, but it isn't required. You can also log glucose, ketones, and blood pressure manually.
How does the free trial work?
Start your subscription on the App Store and the first 7 days are free, with full access. Cancel anytime before the trial ends and you won't be charged; otherwise the plan you picked starts automatically.
Is my health data private?
Your health data is never sold and never used for advertising. A significant portion is stored locally on your device, and features that need cloud processing send only the data relevant to that request. See our Privacy Policy for the full picture.
Does it work in Spanish?
Yes. Human Codex is fully available in English and Spanish.
Can I cancel anytime?
Yes. Subscriptions are billed through the App Store and you can cancel anytime from your App Store subscription settings — no questions, no friction.
Stop starting from zero.
Give your health data the continuity it has been missing. See the pattern, understand what changed, and take the next step with context.