⎇ Your health, under version control

Your health history,
version‑controlled.

Every doctor's visit becomes a version of your record. See what changed, who added what, and catch dangerous combinations — all in one place that you own.

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Synthetic demo data only · your record stays yours, exportable anytime
A glowing strand that is both a DNA helix and a git commit graph
ER visit · chest paincommitted Jun 11 · Mercy General
Psychiatry follow-upcommitted Mar 3 · Dr. Okafor
Annual physicalcommitted Jan 15 · Dr. Chen
Brings together Apple Health FHIR records CommonHealth Lab portals Pharmacy history
Your record, as a repository

Open your health like you'd open a repo.

Files for your medicines, conditions and allergies. A commit for every visit. A history you can actually read.

hx.health/maria-reyes/health
Maria's health record displayed like a GitHub repository
1 safety catch foundtramadol × sertraline

See what changed

Every visit is a new version. Compare any two and see exactly what a doctor changed — new meds, new diagnoses, what resolved.

hx diff HEAD~1

Know who added what

Tap any medicine or diagnosis to see which provider added it, and when — full provenance across every clinic you've visited.

hx blame medications.md

Catch dangerous combinations

Hx reads your whole record after every update and flags unsafe drug interactions that no single doctor could see.

hx check
The catch that matters

It caught what three
doctors couldn't.

Maria's ER prescribed tramadol for chest pain. Her psychiatrist had started sertraline months earlier. Neither chart knew about the other — but Hx reads the whole record, so it flagged the serotonin-syndrome risk the moment the ER visit was added.

Maria asked out loud: “Is everything I'm taking safe together?” — and Hx answered, naming both doctors and dates.

Two of your medicines may not be safe together

Tramadol and Sertraline can interact.

💊
tramadol 50 mg
Added by Mercy General ER · Jun 11
records@mercygeneral
💊
sertraline 100 mg
Added by Dr. Okafor · Mar 3
dr.okafor@bayview

Together these raise the risk of a serious reaction called serotonin syndrome.

Flagged automatically when the ER visit was committed. View safety check
One record, three ways in

An app, a phone call, or a terminal.

Git is the engine — never the interface. A family member just calls a number. A developer gets the full CLI. Same record underneath.

For everyone

The warm app

A friendly timeline of plain-language cards. No charts to decode, no jargon — ever.

ER
ER visit — chest painMercy General · Jun 11
O
Psychiatry follow-upDr. Okafor · Mar 3
C
Annual physicalDr. Chen · Jan 15
Zero apps needed

Call Hx

Dial a number after any visit and just talk. It writes the visit to your record for you.

Hi Maria — how did your visit go today?
They gave me tramadol for the chest pain.
Got it, added. Heads up — that may not mix well with your sertraline. I'll flag it for you. 🛡️
Also speaks Spanish, Mandarin, Tagalog…
For developers

The hx CLI

It's real git. Clone it, diff it, blame it, export it. Your record, your machine.

maria@home — hx
$ hx log e9b2f1c Jun 11 ER visit 7f3a9d4 Mar 03 Psychiatry f/u a1c084e Jan 15 Annual physical $ hx check ⚠ serotonin syndrome risk tramadol × sertraline ✓ caught across 2 providers

Your health story is yours. Start owning it.

Free while in preview. Synthetic data today, your real records tomorrow — encrypted, exportable, and never sold.