Causal
Discover what actually moves the needle for your health. Not correlations — causation.
Your deep sleep is primed for strong recovery tonight.
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Zero noise. Just insights.
Morning Brief
A 3-sentence summary of your day's 'Expected Vibe' based on sleep quality and calendar load.
Pivot Alerts
Notifications only when a causal threshold is hit. No spam, just signal.
Hypothesis Testing
Track any variable — creatine, sunlight, magnesium — and discover its real impact.
Percentile Benchmarks
See how you compare. Top 15% for deep sleep? We'll show you where you stand.
Privacy Guard
All data de-identified before inference. Your health data stays yours.
One sync. All your data.
Connect your wearables and nutrition apps. Causal normalizes everything into a unified timeline.
Common Questions
What is causal inference in health tracking?
Causal inference goes beyond simple correlations to identify what actually causes changes in your health metrics. While most apps show you that sleep and HRV are correlated, Causal identifies that morning sunlight exposure causes an 18% improvement in your deep sleep.
Which wearables does Causal support?
Causal integrates with Oura Ring, Garmin watches, Apple Watch, Whoop, and MyFitnessPal through the Terra API, providing a unified view of your health data.
Is my health data private and secure?
Yes. Causal features a Privacy Guard that de-identifies all data before running inference. Your personal health information never leaves your device without your explicit consent.
How does percentile comparison work?
Causal shows you how your health metrics compare to others in your age group and activity level. For example, you might be in the Top 15% for deep sleep quality.
What makes Causal different from other health apps?
Most health apps show correlations — Causal shows causation. We use advanced statistical methods to identify which of your habits actually move the needle, not just what happens to occur together.
How long until I see insights?
You'll see your first Morning Brief immediately after connecting your wearables. Causal Cards with deeper causal insights typically appear after 2-3 weeks of data collection.