Free & Open — No Account Required

Track your health.
Know what to do.

Blood pressure, weight, A1C, nutrition — all in one place. MetabolicOS doesn't just show you numbers. It tells you what they mean and what to do next.

Open App — Free See Features
🔒 Your data stays on your device ⚡ Works offline 📸 No sign-up needed
0
Accounts to create. Open and start tracking.
100%
Of your data stays on your device. We never see it.
4
Health pillars tracked: BP, Weight, A1C, Nutrition.
1
App that correlates your sodium intake with your BP.
Features
Everything you need.
Nothing you don't.
Most health apps drown you in data. MetabolicOS turns your data into decisions.
🫀
Blood Pressure Tracking
Log systolic/diastolic with context (morning, post-workout, etc). See 7/30/90-day trend charts. Know exactly where you stand.
Free
⚖️
Weight + Goal Tracking
Daily weigh-ins with goal progress. See your trajectory over weeks and months. Smoothed trend line cuts through daily fluctuations.
Free
🍎
Full Nutrition Logging
Calories, protein, sodium, sugar, fiber, carbs, potassium, magnesium. Quick-log meals with smart text parsing — type naturally and we fill in the numbers.
Free
📊
Metabolic Score
One number (0-100) that tells you how you're doing across BP, weight, nutrition, and daily execution. The score you check every morning.
Free
🔬
Sodium-BP Correlation
The feature no other app has. Splits your data into high-sodium and low-sodium days, then shows you how much your BP changes. Real insight from your own data.
Free
💡
Smart Meal Suggestions
Based on what you've eaten today and what you still need, MetabolicOS suggests meals from your own history that fit your remaining macros.
Free
📋
Weekly Progress Digest
Averages, trends, and highlights from the past week. See how consistent you were and where your numbers moved. Updated every Monday.
Free
🗓️
Rest of Day Planner
A complete eating plan for your remaining meals — built from foods you already eat, fit to your exact macro budget.
Pro — Coming Soon
⚡
Adaptive Targets
Your calorie, protein, and sodium targets auto-adjust weekly based on your weight trend, BP readings, and actual behavior.
Pro — Coming Soon
📄
Health Report for Doctors
One-click printable summary for your next appointment. BP trends, weight progress, nutrition averages, labs, medications — all formatted.
Pro — Coming Soon
Comparison
How we stack up
MetabolicOS is the only app built specifically for people managing blood pressure, weight, and metabolic health together.
Feature MetabolicOS MyFitnessPal Cronometer
Calorie + Macro Tracking✓ Free✓✓
Blood Pressure Tracking✓ Free✕✕
Sodium-BP Correlation★ Free✕✕
Metabolic Score★ Free✕✕
Smart Meal Suggestions✓ Free✕✕
Weekly Progress Digest✓ Free✕✕
Works Offline (PWA)✓ Free✕✕
No Account Required✓ Free✕✕
Data Stays on Device✓ Free✕✕
No Ads✓ FreeAds (Free)Ads (Free)
Unlimited History✓ Free✓7 days (Free)
Price$0$79.99/yr$59.88/yr
Pricing
Free. No catch. No ads. Ever.
MetabolicOS is a complete health tracker at zero cost. No limits, no trial, no strings. Pro coaching tier coming soon.
Free
Everything you need to track and understand your health
$0
Forever. Completely free.
  • Full nutrition logging (calories, protein, sodium, sugar)
  • Blood pressure tracking + trend charts
  • Sodium-BP correlation insight — see how food affects your BP
  • Weight tracking with 7-day rolling average
  • Metabolic Score with factor breakdowns
  • Smart meal suggestions based on your history
  • Weekly progress digest
  • 28-day consistency heatmap
  • A1C + labs tracking
  • Data export + import (own your data)
  • No ads. No account. No tracking.
Start Tracking — Free
Coming Soon
Pro
Personalized coaching that tells you exactly what to do
$29.99/yr
Or $3.99/month. Less than half of competitors.
  • Everything in Free
  • Sodium-BP coaching (specific sodium targets for YOUR body)
  • Rest of Day meal planner
  • Adaptive weekly targets that adjust to your body
  • Weekly coaching report with action items
  • 90-day health predictions
  • Printable health report for your doctor
  • Smart Suggestion coaching
Join the Waitlist In-App
Privacy First
Your health data stays yours.

MetabolicOS runs entirely in your browser. Your health data is stored on your device using localStorage — it never touches our servers. We can't see it, we can't sell it, we can't lose it in a data breach. This is how health apps should work.

No cookies. No trackers. No analytics. No ads. No third-party scripts watching what you eat.

🔒 Local Storage Only
🚫 No Server
🔒 No Analytics
✅ Export Anytime
FAQ
Questions? Answered.
Is my health data really private? ▼
Yes. MetabolicOS stores everything in your browser's localStorage. Your data never leaves your device. We have no servers, no database, no way to access your information. You can export your data as a JSON file anytime and delete it by clearing your browser data.
What happens if I clear my browser data? ▼
Your data will be lost. That's why we built the export feature — back up regularly. You can import your backup on the same device or a new one to restore everything. We recommend installing MetabolicOS as a PWA (Add to Home Screen) which gives it dedicated storage that's less likely to be cleared accidentally.
Do I need an internet connection? ▼
Only for the initial load and the AI food parsing feature. Once installed as a PWA, the app works completely offline. Log meals, BP, weight — everything syncs to your local storage without internet.
Is this a medical device? ▼
No. MetabolicOS is a personal tracking and logging tool. It does not provide medical advice, diagnosis, or treatment. Always consult your healthcare provider for medical decisions. The Health Report feature is designed to facilitate discussions with your doctor, not replace them.
Can I use it on my phone? ▼
Yes — MetabolicOS is a Progressive Web App. On iOS, open it in Safari and tap "Add to Home Screen." On Android, Chrome will prompt you to install it. It looks and feels like a native app with full offline support.
What if I want a refund on Pro? ▼
We offer a full refund within 30 days of purchase, no questions asked. Contact us and we'll process it immediately.
Learn
Health insights backed by your data
Understanding the connections between sodium, blood pressure, weight, and metabolic health.
Sodium + BP

How Sodium Actually Affects Your Blood Pressure

Most people know "salt = high BP" but the relationship is more nuanced. Your sodium sensitivity is individual — some people's BP swings 10+ points with sodium changes, others barely move. MetabolicOS tracks this automatically.

Track your sensitivity →
Weight Loss

Why Daily Weigh-Ins Beat Weekly: The 7-Day Average

Your weight fluctuates 2-5 lbs daily from water, sodium, and meal timing. A single weekly weigh-in catches a random point. A 7-day rolling average shows the real trend — and that's what MetabolicOS calculates automatically.

See your real trend →
Metabolic Health

A1C, Blood Pressure, Weight: The Metabolic Triangle

These three numbers are deeply connected. Losing 5-10% body weight can drop A1C by 0.5-1.0 points and BP by 5-10 mmHg. MetabolicOS is the only free tracker that monitors all three together and shows how they interact.

Track the full picture →

Get weekly health insights + updates

One email per week. Sodium-BP tips, new features, and strategies to actually use your health data. No spam. Unsubscribe anytime.

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No spam. No selling your data. Just health insights.

Your health data deserves better
than a spreadsheet.

Start tracking in 30 seconds. No account. No credit card. Just open the app.

Open MetabolicOS — Free