Human Codex: AI Health Agent

Five apps in one: Health Score, meals by photo, training, fasting, vitals — and an Agent that reads your labs against your last 90 days. Core tracking is free.

Human Codex is your personal AI health agent — a single app that brings together your daily Health Score, nutrition, training, fasting, vitals, labs, and intelligent coaching to help you understand your body and take action.

DAILY HEALTH SCORE Wake up to one number that reads your sleep, HRV, resting heart rate, activity, and recovery — weighted against your own 14-day baseline, not population averages. It tells you whether to push or recover today, and sharpens as it learns your data.

PRECISION NUTRITION TRACKING Snap a photo of any meal and get instant macro and micronutrient breakdowns. Log water and caffeine. Set personalized protein, carb, and fat targets. Every entry is verified against the USDA database.

PERSONALIZED TRAINING Build your week by hand from a 110+ exercise catalog — or tell the Agent your goal, your training days, and your equipment, and it writes the plan for you: hypertrophy, strength, powerbuilding, or conditioning & longevity. Import your coach's routine from a photo and it lands in your week, ready to track. Progressive overload builds on what you logged last week, intensity adapts to your recovery — and if life gets in the way, pick back up today and the week slides with you.

AI HEALTH AGENT Chat with an intelligent agent that knows your profile, metrics, and goals. Ask questions, get meal suggestions, talk through supplementation, request protocol adjustments, or retrieve your Apple Health data — heart rate, HRV, steps, workouts, and more — through natural conversation. Voice input supported.

METABOLIC & FASTING TRACKING Start, stop, and monitor fasting sessions with real-time metabolic phase tracking. Add a glucose or ketone reading and each phase upgrades from estimated to glucose-verified, with your Glucose-Ketone Index (GKI) tracked alongside. Choose from popular protocols or create your own.

VITALS DASHBOARD Your everyday signals — steps, workouts, heart health, and sleep from Apple Health — come together in one dashboard with trends and context. Tracking a condition or going deeper? Turn on a clinical layer for blood pressure, glucose, and ketones.

YOUR LABS, IN CONTEXT Type in your labs free — 76 markers across 9 panels, with your ranges evaluated live as you type — or scan any report as a photo or PDF and the Agent extracts every biomarker. Each panel is read next to what you actually did in the 90 days before the draw — steps, workouts, sleep, HRV — and tells you exactly which days informed it. When a panel warrants it, the Agent proposes moving your goals until your retest; you confirm each change and can revert any of them with a tap. At your next draw, see what each marker did next to what you did — side by side.

FREE, WITHOUT A SUBSCRIPTION Your Health Score, nutrition and water logging, hand-built training, fasting, vitals, and typed-in labs work end to end at no cost, on your device. Pro unlocks the Agent: the conversation, the plans it writes and adjusts, and the lab reads.

WORKS WITH YOUR TOOLS

• Deep Apple Health integration — reads biometrics, writes nutrition and weight back
• Home Screen widgets and Siri for your score, fasting, and training day
• Notion workspace sync — export your insights and organize your data
• Apple Calendar & Reminders — schedule fasting windows, sessions, and reminders

PRIVACY BY DESIGN Your core health data stays on your device. AI features use a secure cloud service only when you choose to use them, and only after your explicit consent. You control what data is processed and can revoke access anytime from Settings.

NOT MEDICAL ADVICE Human Codex is a decision-support tool. All AI-generated content includes clinical disclaimers. Always consult a healthcare professional for medical decisions.

Start free. When you're ready for the Agent, try Pro free for 7 days.

——— Terms of Use (EULA): https://humancodex.app/terms Privacy Policy: https://humancodex.app/privacy