Your Apple Watch is a powerful medical device, capturing thousands of data points about your heart rhythm.
But raw data in a list is hard to read.
Heart History acts as a dedicated visualization layer on top of Apple Health.
We take the hidden numbersâpercentages, timestamps, and trendsâand transform them into a beautiful, interactive "Liquid Glass" dashboard.
Whether you are managing a diagnosis or just keeping an eye on your health, we give you the clarity you need in seconds.
Apple Watch monitors your heart in two very different ways.
Heart History automatically detects which data you have and adapts the interface instantly.
For: Users managing a diagnosis.
How it works: If you have "AFib History" enabled, your Apple Watch tracks how long your heart is in AFib each week.
This is measured as a percentage (e.g., "Your burden was 4% this week").
What our app does: We visualize this weekly percentage on a long-term timeline, helping you spot trends.
Is your burden rising or falling?
Our interactive charts let you scrub through months of history to find out.
For: Users looking for early warning signs.
How it works: The Apple Watch occasionally "spot checks" your heart rhythm when you are at rest.
If it detects an irregularity, it records an event.
What our app does: We aggregate these sporadic alerts into a clean timeline.
Instead of hunting through menus, see exactly how many alerts occurred on specific days or weeks.
Heart History does not measure your heart rate directly.
Instead, it reads the secure, encrypted database already present on your iPhoneâApple Health.
The Sensor: Your Apple Watch optical heart sensor captures the raw rhythm.
The Engine: watchOS analyzes the rhythm and writes the results to the Health app.
The Visualization: Our app reads these specific records and renders them in a way that makes sense to humans, not just computers.
We believe health tools should be beautiful to use and impossible to compromise.
On-Device Processing: Your heart data never leaves your iPhone.
We do not have servers.
We do not have user accounts.
The app reads directly from HealthKit and displays it on your screen. Thatâs it.
Interactive Design: Touch, drag, and scrub through your history.
Our charts feature haptic feedback and dynamic headers that change as you interact with your data.
Smart Context: The app understands medical standards.
It uses a traffic-light color system (Green, Orange, Red) to help you instantly gauge if a value is within a typical range.
Note:Â
This app is for informational purposes only.
It visualizes data collected by your Apple Watch.
It is not a medical device and does not provide diagnoses or treatment advice.
Always consult a physician for medical concerns.