Wearables generate data. Bivryn generates understanding. An App that understands your biology.

Most health apps overwhelm you with charts, scores, and disconnected metrics. Bivryn is different. It reads your Apple Health data — sleep, heart rate variability, resting heart rate, recovery, blood work, supplements — and explains what's actually happening in your body, in plain language.

"Your body is asking for a softer day."

"Coffee after 2 PM is reducing your deep sleep by 31%."

"Your HRV recovered fully — you're free to push."

These aren't generic tips. Bivryn learns your personal baselines over time and finds patterns hidden in your own data.

WHAT BIVRYN DOES

• AI Body State, daily. A personalized interpretation of how your body is doing this morning, with the specific drivers behind it.
• Discoveries. Bivryn continuously finds correlations across your behavior and biology — the kind you'd never spot manually. ("HRV drops for 48 hours after alcohol." "Late dinners elevate overnight heart rate.")
• Blood Work Intelligence. Upload a lab PDF and Bivryn interprets cholesterol, ferritin, vitamin D, hs-CRP, glucose, hormones, and more — connecting markers to your sleep, energy, and recovery.
• Hormone Panel. Three lenses on the same data: cycle phase, mental-health context, and longitudinal drift. Useful for tracking estrogen, progesterone, testosterone, cortisol, thyroid markers.
• Self-Experiments. Test one change at a time. Bivryn measures your baseline, tracks adherence, and tells you honestly whether your biology actually moved — or didn't.
• Sleep Architecture. REM, deep, and core sleep with behavior correlation — see what's actually building your night.
• Cardio Fitness & Training Capacity. Honest reads for athletes who want to push or recover with intention.
• Body Memory. A living biological timeline you can revisit — travel, recovery streaks, supplement changes, milestones.
• Reset Toolbox. Evidence-backed breathing, walks, eye rest, and light reset sessions for the moments you need them.
• Doctor Snapshot. One tap exports a one-page PDF for your physician, or a full markdown dossier you can paste into ChatGPT or Claude for a second opinion.
• Apple Watch companion. Score, recovery curve, breathing sessions, and complications on your wrist.
• Siri & Shortcuts. Ask "Hey Siri, what's my body state?" — or chain Bivryn into any iOS automation.

DESIGNED FOR

High performers, founders, biohackers, longevity-focused individuals, athletes, and anyone who's tired of fitness-tracker noise and wants their biology to actually make sense.

PRICING

Free to download. 7 days of full access. No card required.

After trial: $14.99/month or $99.99/year.

Auto-renews unless canceled. Managed through your Apple Account.

PRIVACY

Your sleep, HRV, blood work, and logged data stay on your device. Anonymous usage events help us improve Bivryn — no personal data, no health data, never sold. We don't track you across apps.

Terms of Use: https://bivryn.web.app/terms

Privacy Policy: https://bivryn.web.app/privacy

IMPORTANT

Bivryn is not a medical device. It is not intended to diagnose, treat, cure, or prevent any disease. For medical concerns, consult a healthcare professional.