✦ Personal Health Intelligence

Your health data,
finally in context

Longview connects your health devices, tracks your biomarkers over time, and helps you arrive at every doctor's appointment with the full picture.

90+
Days of history
10+
Health metrics
✦ AI
Powered insights
🔒
Your data only
✦ Features

Everything your doctor
wishes you tracked

Longview brings together data from all your health devices into one coherent picture — then helps you make sense of it.

📊
Longitudinal Tracking
Track blood pressure, HRV, sleep stages, resting heart rate, weight, and more over weeks and months — not just today's numbers.
AI Health Assistant
Ask questions about your data. Get insights on correlations between your lifestyle and health markers. Prepare for appointments with confidence.
🔗
Device Integrations
Connects with Oura Ring, Apple Health, Garmin, Omron blood pressure monitors, and more. Your data flows in automatically.
📋
Appointment Reports
Generate a comprehensive clinical summary before any doctor's visit — blood pressure trends, lab results, supplement stack, and key milestones.
🔬
Correlation Explorer
Overlay any metrics to find patterns. Does alcohol affect your next-day HRV? Does training load impact sleep? Find out with lag analysis.
🔒
Private by Design
Your health data belongs to you. No advertising, no data selling, no third-party sharing. Longview is a tool, not a platform.

Works with your devices

Connect once. Data flows automatically.

Oura Ring
Apple Health
Garmin Connect
Omron Connect
Cronometer
Manual Entry
✦ How it works

Up and running in minutes

No complex setup. Just connect your devices and start building your health picture.

1
Create your account
Sign up in seconds. Your data is private and secure from day one.
2
Connect your devices
Link Oura, Apple Health, or other sources. Longview pulls in your history automatically.
3
Discover your patterns
Explore trends, ask the AI assistant, and arrive at your next appointment with the full picture.

Take the long view
on your health

Longview is coming soon. Sign up to be notified when we launch.

Coming Soon
What Makes Longview Different

Most health apps show you your data.
Longview helps you talk to your doctor about what it means.

📊
See the connections

Discover how your sleep, nutrition, and daily habits connect to your biomarkers over time — not just what the numbers are, but what's driving them.

🩺
Bridge the gap

Walk into every appointment with months of context, not just how you feel that day. Your care team sees the complete story — and can act on it.

🗣️
Show, don't just tell

Most appointments start with "how have you been feeling?" Longview gives you — and your doctor — a richer answer. Months of trends and patterns, organized into a clinical summary before you even sit down.

Longview is for people who take their health seriously and want their care team to see the complete picture.
You can't feel everything that matters. But you can know. And knowing puts you in control.

Why Longview Exists
"I was doing everything right.
Turns out that wasn't the whole picture."

I've spent most of my adult life taking health seriously — endurance training, whole food nutrition, the works. For years I measured my health the way most athletes do: by how I felt and how I performed.

Sleep was the one thing I didn't prioritize. There's a mentality in endurance sports that fitness will carry you through anything — including rest. Log the miles, eat clean, and your body will handle the rest. It's a mindset that gets you to the finish line. It's also incomplete.

That's a trap serious athletes fall into more than most. When your resting heart rate is in the 40s and you're covering miles that would wind most people, it's easy to assume you're covered. The annual checkup comes back fine. You move on.

What I didn't know — what my annual checkups never caught — was that I carry elevated Lipoprotein(a), or Lp(a). Everyone has some Lp(a) in their blood, but roughly 20% of people have genetically elevated levels that significantly increase cardiovascular risk. It has nothing to do with how fit you are or how well you eat. It's written in your DNA.

A comprehensive blood panel finally surfaced it. Not a standard lipid panel — those don't test for Lp(a). A comprehensive one. The kind most people never think to ask for because they feel fine.

I built Longview because that experience changed how I think about health data. Feeling healthy and knowing your health are two different things. The gap between them is where risk hides.

Longview exists to close that gap — to give you and your care team a complete, longitudinal picture of your health, not just a snapshot from one annual visit. Because the patterns in your data over time tell a story that a single appointment never can.

D
David Fellows
Founder, Longview · San Diego, CA
A note to fellow athletes

If you train hard and eat well, you're doing a lot right. But fitness is not a proxy for cardiovascular health — and sleep is not optional recovery, it's a biomarker. Lp(a) testing, ApoB, inflammatory markers — these aren't just for sick people. Ask your doctor for a comprehensive panel. Know your numbers. The data might surprise you.

Get notified when Longview launches →