Hanzo Health Journal

Turn daily symptoms into clarity. Use on-device AI to spot patterns in your PCOS, migraine, or endo cycles. Private, secure, and built for your peace of mind.

Hanzo Health: Your Private Daily Symptom & Wellness Journal

Track migraines, Hiesho (cold sensitivity), chronic conditions, mood, energy, sleep and more - all in one beautiful, privacy-first Apple Health journal. Hanzo Health combines effortless manual logging with passive Apple Watch & HealthKit data to deliver the Hanzo Score, on-device AI insights powered by Apple Foundation Models, and clinician-shareable reports.

Why users love Hanzo Health 100% On-Device AI Powered by Apple Foundation Models - Generate AI Health Summaries and chat privately with your own data. Runs entirely on your iPhone or iPad using Apple Foundation Models. Nothing is ever sent to servers. Your most sensitive health information stays completely private - zero-server architecture by design.

Condition-Aware Tracking - Personalized for 12 chronic conditions including migraines, Hiesho, PCOS, endometriosis, IBS, fibromyalgia, and autonomic dysfunction. Symptom presets, flare logs, and insights adapt automatically. Hanzo Score & 30-Day Wellness Composite - One glanceable number that combines mood (1–10), energy, sleep quality, steps, resting heart rate, and HRV. See weekly recaps, trends, and progress at a glance. Seamless Apple Ecosystem Integration - Automatic HealthKit 30-day backfill, Apple Watch quick logs, WidgetKit glanceable widgets, and iCloud private sync (or fully local fallback).

Evening Reflection & Morning Check-In Rituals - 60-second guided journaling that builds healthy habits and deeper self-awareness.

Doctor-Ready Export - One-tap PDF “Doctor Report” or CSV with mood heatmap, symptom frequency, full daily logs, and Apple Health metrics - perfect for your next appointment.

Built-In Health Education - 16+ research-backed articles on sleep quality vs duration, HRV as a stress metric, the gut-brain axis, and more - filtered to your conditions. Designed for real life

Whether you live with recurring migraines, Hiesho (recognized in East Asian medicine as localized cold sensitivity), or any fluctuating chronic symptoms, Hanzo turns subjective feelings and objective biomarkers (HRV, resting heart rate, sleep) into clear, actionable patterns - all processed locally on your device.

• Privacy & Security First
• Face ID / Touch ID + passcode lock
• App-switcher privacy shield
• iCloud private sync or 100% local mode
• Delete-all-data option
• On-device AI that never sends your data anywhere
• Clinical Research Foundation

Hanzo was designed using rigorous clinical research frameworks (PICOT & FINER criteria) and draws from literature on autonomic wellness metrics including HRV, sleep architecture, and the gut-brain axis.

Perfect for

• Migraine & headache sufferers
• People managing Hiesho or autonomic issues
• Anyone with chronic or fluctuating symptoms who wants deeper insight without sacrificing privacy

Available in English, French, and Japanese.

Start logging today and see your Hanzo Score in minutes. Your private health story, beautifully told — with complete data privacy.

Tap “Get” and begin your wellness journey.

Requires iPhone 15 Pro or later for AI-powered features using SiriAI/Apple intelligence (Apple Foundation models)

Hanzo Health is not a medical device and does not provide medical advice. Always consult a qualified healthcare professional before making any health or medical decisions.