chōju · japanese — “long life”
Grow old.
Slowly.
Chōju reads your bloodwork, your genome, and your daily habits — and distills them into the one number you can actually move: your biological age.
01 blood
Your blood already tells the story.
Every lab you've ever taken is a chapter. Drop in any lab PDF — Chōju's AI extracts 60+ biomarkers in seconds, grades each one against functional longevity ranges instead of bare “normal,” and files every draw into an encrypted vault — AES-256 encrypted with your password before it ever leaves your device.
02 inheritance
Read the code you were born with.
Upload your raw genome — 23andMe, AncestryDNA, or VCF. Chōju maps longevity-relevant variants like APOE, FOXO3 and MTHFR, explains them in plain language, and folds your inheritance into every recommendation it makes.
03 time
Age is a number. Nine of them, actually.
The PhenoAge engine computes your biological age from nine blood markers — the Levine method used in longevity research. Then the diet optimizer and supplement stack go to work on the markers that drift, so the next draw bends the curve.
04 the practice
A complete practice.
Longevity isn't one habit. Chōju binds blood, genes, food, supplements, and sleep into a single daily discipline.
Biomarker Vault
60+ markers, encrypted on your device, trended across every draw you've ever taken.
Bio-Age Engine
PhenoAge from nine blood markers. One honest number — and a plan to lower it.
Genomics
Raw DNA upload. Longevity variants surfaced and explained, never sold, never shared.
Diet Optimizer
Meal plans tuned to the exact markers that are drifting out of range.
Supplement Stack
Doses, timing, and interactions — managed like a protocol, not a pile of bottles.
Wearables & Inbox
Sync your watch. Let the AI scan lab PDFs straight from your email, automatically.
Your Data Stays Yours
Your vault is encrypted with your password before it leaves your device. We store ciphertext we mathematically cannot read — lab reports are also scanned client-side with personal names, IDs, and ΑΜΚΑ redacted before any AI sees them.
Doctor's Briefcase
Walk into your next appointment with a one-page clinical brief your doctor will actually read — every marker, every trend, every question worth asking.
pricing
Start free. Go deeper when ready.
- Manual biomarker tracking
- PhenoAge biological age
- Supplement stack management
- Trend charts
- Encrypted backup
- Everything in Free
- AI health analysis
- Smart lab PDF import
- Precision range research
- Personalized diet plans
epilogue — begin
Begin your practice.
The cranes live a thousand years, the saying goes. The first chapter of a long life is written today.
Launch ChōjuiOS · Face ID protected · your data stays on device