Your health, decoded.

The open engine for your biology. Connect every wearable and lab result into one timeline you actually own. No black boxes, no locked doors—just raw signal and the tools to use it.

Exports, APIs, rules, and custom metrics. Your data, your rules.

Get Started Free Explore Synthia

Free plan available • Upgrade anytime

Voice & Text Chat

All Major Wearables

256-bit Encrypted

87

Baseline

7.2h

Sleep

8.4k

Steps

52ms

HRV

Synthia Bio-Optimization Agent

How did my sleep affect my HRV this week?

Your HRV was 18% higher on days you got 7+ hours of sleep. I've created a Time Machine card for you.

Labs

All Normal

Glucose

92 mg/dL

Good morning

Your Baseline Score

87

↑ 5 from last week

Sleep

7.2h

Activity

8,432

HRV

52ms

AI Insight

Your HRV improves 18% on days with 7+ hours of sleep. Consider targeting 10:30pm bedtime.

Correlation Insights

Sleep → HRV Strong

Better sleep = higher HRV next day (+18%)

Activity → Glucose Moderate

Post-meal walks lower glucose spikes (-12%)

Stress → Sleep Moderate

High stress days = worse sleep quality

Synthia found 12 correlations in your data

Today's Nutrition

1,450 of 2,000

Protein 92g

Carbs 148g

Fat 52g

Recent Meals

🥗

Grilled Chicken Salad

Lunch • 420 cal

AI logged

🍳

Eggs & Avocado Toast

Breakfast • 380 cal

Photo

AI Conversations

Active

2,089

Calories

Good

8h 12m

Sleep

Optimal

Lipid Panel

+8%

52ms

HRV

100+ Customizable Modules Available

Your health data is scattered and hard to understand.

Sleep in one app

Glucose in another

Lab results buried in PDFs

No one to explain what it means

Synth brings everything together in one place.

And Synthia makes sense of it all for you.

Don't Trust. Verify.

Raw Signal

No smoothed-over summaries. Click to see the raw data points behind every insight.

Root Access

Your data is yours. Export, query, and analyze it without restrictions.

Your Model

A dedicated baseline model for your biology. Not a generic public LLM.

Power Tools

Root access for your health stack

Exports, APIs, rules, custom metrics, and experiments—built for people who want full control.

Raw Export

Export your data as CSV/JSON anytime—no lock-in, no gatekeeping.

Bring-your-own-data

Import CSVs and manual logs to complete the picture beyond wearables.

Custom Metrics

Define derived metrics and custom scores that match your protocol.

Rules & Alerts

Set thresholds and triggers against your baseline—get notified when it matters.

Experiments

Run interventions and measure outcomes with before/after comparisons.

Reports

Generate shareable doctor/coach reports with trends and context.

API / Webhooks

Connect your stack with an API and automate flows with webhooks.

Seamless Integrations

All your health signals - finally connected.

Synth unifies wearable data, lab biomarkers, and lifestyle inputs into one clean dashboard.

Synthia understands every single data point.

Apple Health

Google Fit

Lab Results

Fitbit

Oura

Whoop

Garmin

Libre

Withings

Eight Sleep

Polar

Strava

iHealth

Wahoo

AI Health Companion

Meet Your Bio-Optimization Agent

Don't just chat. Execute. Synthia logs meals, runs complex queries, and manages your dashboard so you don't have to.

Command Line for Biology

Log metrics, query trends, or configure your dashboard via voice or text. Total control.

Voice & text supported

Time Machine Comparisons

Compare sleep, HRV, or any metric across two different periods to see what actually changed.

AI-generated insights

Deep Pattern Search

Synthia scans for correlations you'd miss. You see the math, not just the summary.

Cross-data analysis

Rapid Capture

Take a photo or just speak. Synthia structures nutrition and lifestyle data instantly.

Photo recognition

Smart Goals

AI-recommended goals based on YOUR patterns and data. Personalized, not generic.

Data-driven recommendations

Personal Baseline Model

Your unique baseline, built from your history. Spot anomalies instantly before they become problems.

Predictive insights

Try commanding Synthia...

"Log: 2 eggs + avocado"

"Create experiment: no caffeine after 2pm for 14 days"

"Set alert: HRV drops 15% below baseline"

"Export last 90 days as CSV"

"Generate a doctor report for last month"

"Create dashboard card: fasting vs sleep quality"

Data + AI Features

Beyond Tracking. True Understanding.

All your health metrics in one place, with AI that surfaces what matters most.

The Open Dashboard

Customize every card. Combine streams from Apple, Garmin, and Oura into a single command center.

Synthia highlights what matters

Lab Intelligence

Upload PDFs — AI extracts biomarkers automatically. Track trends over time with historical comparisons.

Clear explanations

Causality Engine

Uncover hidden connections—like how your 7 PM dinner affects your HRV or why your recovery peaks on Tuesdays.

Finds the "why" behind the "what"

Unified Wellness Score

A daily baseline score blending sleep, recovery, labs, activity, and habits into one actionable number.

Explains baseline shifts

Universal Log

Voice-log nutrition, symptoms, or workouts. Synthia structures the data instantly.

Voice & photo logging via Synthia

Full Privacy & Control

256-bit encryption. No data sharing. No ads. Export or delete your data anytime.

You own your data

Security & Privacy

Your Data Stays Yours

Health data is personal. We built Synth with privacy as a foundation, not an afterthought.

256-bit Encryption

Bank-level AES encryption protects your data at rest and in transit.

Zero Data Selling

Your health data is never sold, shared, or used for advertising. Ever.

No Public AI Training

Your health data is never used to train public AI models.

Full Data Control

Export all your data anytime. Delete everything with one click.

HIPAA Compliant

Encrypted End-to-End

No Ads or Trackers