Your Heart Rate Is Not a Business Model
I never set out to compete with anyone. I set out to be left alone.
That sounds strange coming from someone who built a health app, so let me explain.
At some point I started paying attention to my own data. Not in an obsessive way. I just wanted to understand the basics. Was I sleeping enough? Was my heart working harder than it should? Was today a good day to train hard or a good day to rest? My iPhone had been quietly collecting years of this information. Sleep. Heart rate. Workouts. Recovery. It was all there. I just couldn’t make sense of any of it.
So I did the obvious thing. I looked for an app.
And that is where something started to bother me.
Almost everything I found wanted the same thing first. Not to help me. To take my data somewhere else. Create an account. Verify your email. Let us sync everything to our servers. Trust us with the most personal information you have, the rhythm of your own heart, the hours you sleep, the days your body is struggling, and let it live on a machine you will never see, governed by a privacy policy you will never read.
I kept asking myself a simple question. Why does understanding my own body require handing it over to a stranger?
Nobody had a good answer. The honest answer is that data is valuable, and once it leaves your phone, it stops being only yours. It becomes something to store, analyze, monetize, breach. Your resting heart rate becomes a row in someone else’s database. Your worst night of sleep becomes a data point in a business model.
Get André Moura, MSc, CSPO’s stories in your inbox
Join Medium for free to get updates from this writer.
That felt backwards to me. The most private thing a person has should not be the price of admission.
I’m a developer. I know these apps do not need a server to be smart. The iPhone in your pocket is more than capable of doing the math itself. The only reason so much of this runs in the cloud is that the cloud is where the data becomes profitable. It is a business decision dressed up as a technical one.
So I decided the data would stay exactly where it belongs.
HealthVitals Pro reads the health data you already have and turns it into something you can actually understand. A readiness score that tells you what your body is ready for today. Patterns you would never spot on your own. Alerts when something quietly drifts out of your normal range. A clear picture of your movement, your sleep, your heart, your recovery.
And it does all of it on your phone.
No account. No email. No servers. No sync to somewhere you cannot see. Nothing leaves the device. There is no database with your name on it because there is no database at all. If you delete the app, your data does not survive somewhere else. It was never anywhere else to begin with.
I’m not going to pretend this was the easy path. It would have been simpler to do what everyone else does. On-device intelligence is harder to build. But it is the only version of this app I actually wanted to use, because it is the only version that respects the person using it.
Your body tells you a lot every single day. You deserve to understand what it is saying without signing that understanding away.
If that sounds like the tool you have been looking for, give it a try.
Download HealthVitals Pro on the App Store:
https://apps.apple.com/app/id6759471194
It’s free to start.
