All your health data,
in one place you own.
Syntropy Health connects Apple Health, Oura, WHOOP, Fitbit, your lab results and your medical records from 20,000+ U.S. hospitals into one private timeline. It runs on your own computer, with built-in AI from a local model, Claude, Codex, Gemini or any MCP app.
MacWindowsLinuxDocker & NAS Best on an always-on computer, like a Mac mini or home server
118 mg/dL in May, from 149 a year ago, since you added zone 2 rides. Still above your lab's range.
See the chart →Your last 7 days are well above your usual week. Build up gradually.
After midnight bedtimes your HRV was 8 ms lower the next morning.
Compared with your 30-day average, on nights after a workout.
This week. Those nights averaged 52 minutes less sleep.
Brings together the devices, apps and patient portals you already use
- Apple Health
- Oura
- WHOOP
- Fitbit
- Pixel Watch
- Apple Watch
- MyChart
- Oracle Health
- GARMIN
- Strava
- athenahealth
- Withings
- healow
- Dexcom
Everything flows to one place: a computer you own
Syntropy Health runs on your own Mac, PC or home server. Your sources sync straight to it, and you reach it from your browser, your phone or your AI. Nothing passes through a Syntropy cloud, because there isn't one.
Your sources
Your Syntropy Health
On a computer you own, ideally one that stays on
- One database, on your own disk
- Password required, sign-ins encrypted
- Syncs on a schedule, around the clock
- Every AI lookup logged
You, anywhere
Connects to the health data you already have
Wearables, phones, patient portals and lab reports in one record. When your watch and your ring both measure something, it's counted once.
Wearables & phones
Direct connections that keep syncing on their own.
- Apple HealthiPhone & Apple Watch, through the iPhone app or an export
- Oura RingSleep, readiness, HRV and activity
- WHOOPRecovery, strain, sleep and workouts
- Fitbit & Pixel WatchThrough the Google Health API
- Health ConnectSamsung Galaxy Watch and Android appsSoon
Medical records & labs
Sign in with your patient portal. Read-only, over the standard SMART on FHIR.
- Epic MyChart1,300+ health systems
- Oracle HealthCerner hospitals, 1,300+ organizations
- athenahealthEvery athenahealth practice, one sign-in
- eClinicalWorkshealow, 17,000+ practices
- Lab reports & filesPDFs, photos of paper reports, record exports
Everything in Apple Health
If an app or device writes to Apple Health, it comes along too.
- GarminWatches and bike computers
- StravaRuns, rides and routes
- WithingsScales, blood pressure, sleep
- Dexcom & FreeStyle LibreContinuous glucose
- And many moreCycle tracking, nutrition, mindfulness, ECGs
One timeline for your whole health
Your ring knows your sleep, your watch knows your training, your lab knows your biomarkers and your doctors know your history. Syntropy Health finally puts them side by side.
See what's changed, across every source
Numbers drifting from your own normal, lab results moving out of range, how your sleep lines up with the mood you check in with. Each insight shows the numbers behind it, never a diagnosis.
Every device, counted once
Sleep, HRV and training on the same timeline as every lab result, with your usual range shaded.
Your full medical history
Labs, medications, conditions, visits and notes from every hospital you use, merged into one record.
Sleep, night by night
Stages for every night, bedtime consistency, and how your nights line up with everything else.
Training load and zones
Weekly load against your usual, heart-rate zones, pace and best efforts for every kind of workout.
Paper lab reports too
Photograph a report or open a lab's PDF. It's read on your own computer, you check the numbers, and they join your trends.
For the people you care for
Keep a profile for a partner, a child or a parent, and share access within your household.
Yours to take anywhere
Print a one-page summary before an appointment, export everything in standard formats, or back it all up in one file.
Ask anything. Choose who answers.
The assistant looks things up across your wearables, labs and records with read-only tools, shows you each lookup, and logs it. You decide which AI runs it, and so where your questions go.
Or use no AI at all. Everything else works without it.
Everything stays on your computers. Answers are only as good as the model you run.
It runs with read-only access to your records and nothing else: no shell, files or web. Anthropic, OpenAI or Google sees what it's asked and looks up, under your plan's terms.
The provider sees your questions and the records the assistant looks up to answer them, under its own terms and privacy policy.
Each access can be limited to one person and revoked any time, and every lookup is logged. What the app does with answers is up to its own policies.
A cloud AI provider can see the health information you ask about. If that's not for you, use a local model, or no AI at all.
Install it once. Best on a computer that's always on.
Syntropy Health runs on almost anything: a Mac, a Windows PC, a Linux box or a NAS. Put it on one that stays on, and your data stays current and within reach.
Wearables and patient portals sync on a schedule, and your iPhone sends new data in the background.
Open it from your phone, your laptop or an AI app at any hour, at home or away.
Nothing is lost while it sleeps: your phone holds on to new data, and syncs catch up when it wakes.
Mac mini, or any Mac
The Mac app sits quietly in the menu bar and opens at login. Apple silicon, macOS 12 or later.
Get the Mac appWindows PC
The Windows app lives in the tray and keeps syncing with its window closed. Windows 10 and 11.
Get the Windows appLinux home server
One command sets up a background service, with automatic updates if you want them. Even a Raspberry Pi.
Install on LinuxNAS or Docker
An image for Intel, AMD and ARM: Synology, Unraid, TrueNAS or any machine that runs Docker.
Run with DockerAway from home? Install Tailscale on your server and your phone for a private connection from anywhere, without opening your server to the internet.
Private by architecture, not by promise
Your health data never passes through a Syntropy server, because there isn't one that stores it.
It runs on your devices
Data syncs straight from your hospitals, wearables and phone to your own computer and stays there.
No account to create
There's no Syntropy account to sign up for. This website has no analytics, cookies or trackers.
Locked down by default
A required password, sign-ins encrypted at rest, and a log of every sign-in, sync, export and AI lookup.
Open to inspection
The code that handles your records is public under the AGPL-3.0 license, for you or anyone you trust to check.
Your data, your responsibility. Because your records live on your own computer, keeping it secure, updated and backed up is up to you; we can't see, recover or delete them. Syntropy Health organizes your information and isn't medical advice. How it works · Terms · Privacy
Built in the open. Yours to inspect.
Every line that touches your records is public under the AGPL-3.0 license. Read it, run it, change it, or have someone you trust check it. Bug reports, ideas and pull requests are welcome.
The open-source, self-hosted personal health record.
# Mac $ curl -fsSL https://health.syntropylabs.io/install.sh | sh # Linux server $ curl -fsSL https://health.syntropylabs.io/install.sh | sudo sh # Windows (PowerShell) > irm https://health.syntropylabs.io/install.ps1 | iex
Questions
Is it really free?
Yes. Syntropy Health is free and open source, for any use. If you use the AI assistant with your own key, your AI provider bills you directly.
What should I run it on?
Any Mac with Apple silicon, a Windows 10 or 11 PC, a Linux machine or anything that runs Docker. It works best on a computer that stays on, like a Mac mini, a home server or a NAS: syncs run around the clock, and your phone and AI apps can reach it any time. On a laptop, it catches up whenever it wakes. See all platforms
Which wearables and hospitals can I connect?
Apple Health (and everything that writes to it, like Garmin, Strava, Withings and Dexcom), Oura, WHOOP, and Fitbit and Pixel Watch through Google Health. For medical records, Syntropy Health uses the standard patient-access connection U.S. hospitals and clinics are required to offer, and its directory lists more than 20,000 of them on Epic, Oracle Health, athenahealth and eClinicalWorks. Some portal companies are still approving Syntropy Health; where a connection isn't available yet, you can import a file from your portal, an Apple Health export or a lab report.
Which AI can I use?
A model running on your own computer or another one at home (Ollama, LM Studio and similar), your own key from Anthropic, OpenAI, Google, OpenRouter or another OpenAI-compatible service, agents you already have installed and signed in to on the same computer (Claude Code, Codex, Gemini CLI), or any app that supports MCP, such as Claude Desktop, Cursor or Antigravity. You don't need AI to use Syntropy Health at all.
Does Syntropy see my health data?
No. Your records go from your hospital or clinic straight to your own computer, and your phone and wearables sync to it directly. There's no Syntropy account and no Syntropy server that stores health data. How it works
Is there a phone app?
The iPhone app syncs Apple Health to your Syntropy Health in the background and brings your records with you. It's coming to the App Store; until then, Syntropy Health works in your phone's browser. An Android app with Health Connect, for Samsung Galaxy Watch and more, is next.
Do I need to be technical?
No. The Mac and Windows apps install like any other app and walk you through setup. A Linux server or Docker takes a few commands, and the setup guides cover each one.
Is it medical advice?
No. It's your own copy of your data, for seeing trends and understanding them. It doesn't diagnose anything, and neither does the AI. Check anything important with your care team.
Bring your health data home.
Free, open source, and running on your own hardware in minutes.