Now in private build

The Operating System
for Your Biology

Log your nutrition. Track your training. Sync your wearables. Upload your labs. One AI-powered daily brief tells you what it all means, together, every morning.

Live · Morning Brief
Today · 7:14 AM
0
Composite
Top Signal
Recovery leading, push training hard today.
+6 VS 7-DAY AVG
Protein 165g
165g protein · 3,412 kcal · macros aligned with bulk phase
How it works

The daily ritual,
three steps deep.

Step 01
Log Natively

Meals, macros, micros, supplements, workouts, sets, reps, load, all logged in the app in 60 seconds per entry. No syncing from MyFitnessPal. This is the primary record.

Step 02
Sync Automatically

Oura, Apple HealthKit, and your lab PDFs all flow into the same place. Sleep, HRV, recovery, readiness, biomarkers. One longitudinal record. WHOOP and CGM coming soon.

Step 03
Read the Brief

Every morning, a composite score, the top signal per stream, and a protocol check-in. One page. One minute. That's the daily ritual. The moat builds itself.

The replacement

You already pay for
four apps that don't talk.
This is the one that does.

Sleep in Oura. Strain in WHOOP. Food in MyFitnessPal. Labs in an email attachment. Nexus Bio logs them natively, syncs them automatically, and tells you what it all means, together, every morning.

MFP
WHOOP
OURA
InsideTracker
Nexus Bio
Nutrition logging
✓✓
Native
Workout logging
basic
Native
Sleep & recovery
✓✓
✓✓
Synced
Lab biomarker analysis
Native
Cross-system intelligence
partial
Core
AI custom protocols
Advisory
Compounding signal

Your biology, building over time.

The first week is setup. The first month is signal. The first six months is leverage. This isn't a 30-day challenge. It's the operating system you keep.

Day 1

Baseline

Connect a wearable, log your first meal, log your first lift. The system starts reading you.

~10 min setup · Oura and Apple HealthKit one-tap auth · USDA food search live from minute one.
Day 30

Signal

Enough data to see patterns. Your first real Morning Brief. Not platitudes, the actual correlations in your body.

30 days of cross-stream data. Training + sleep + macros correlated against HRV and readiness. No more guessing.
Day 90

Protocol

Seasonal shifts, training cycles, lab deltas. The OS learns what works for you specifically, not generically.

First lab re-test lands. Supplement protocol adjusts. Training phase detection kicks in.
Day 180

Operating leverage

You stop guessing. Every input (food, sleep, training, labs) feeds one coherent view. This is the point.

Six months of compounding. Your record is now denser than any single-stream app could produce. Leaving means starting over.
Join the waitlist

Every system.
One signal.

Nexus Bio is the operating system for your biology. Nutrition, training, recovery, and labs feeding one coherent brief every morning. Early access is rolling out now.

Core$30
Optimize$79
Advisory$149
Start Your OS