For the past six months, the PWN-ALL team has been working with doctors from the UAE, Ukraine, Slovakia, and the Czech Republic on a new mobile app for Android.
At first glance, the task seems simple: to make it easier for patients to access their medical records.
In practice, however, there’s much more to it than that.
From a patient’s note to clear information for a doctor
Information about a person’s health rarely comes in a perfectly structured form.
Some things a person remembers. Some things they jot down in notes. Some things remain in their calendar, photos, or messages. By the time of the consultation, they have to try to reconstruct events, symptoms, and their own observations from several days or weeks ago.
We want to make this process easier.
The app will allow users to keep track of their health in a format that’s convenient for them, and then view that information in a more structured and readable way—both for their own reference and when talking to a doctor.
That’s why a significant portion of the product development took place in collaboration with practicing doctors from four countries. It was important for us to design the app not around an abstract set of features, but around how people actually keep their records and how this information is perceived during a medical consultation.
Offline by design
When it comes to health, privacy isn’t just an extra feature for us.
It’s part of the architecture.
The app is built as a fully native Android app in Kotlin and works offline. It does not require network connectivity to handle user entries: data processing occurs locally on the device.
We deliberately chose this approach.
The less infrastructure there is between a person and their personal data, the fewer unnecessary points of transmission, storage, and potential access to that information.
Instead of first building a cloud-based product and then trying to limit data collection through privacy settings, we started with the opposite principle: if a feature doesn’t require the internet, the app shouldn’t depend on it.
A tool for keeping records, not a substitute for a doctor
The app is not intended to make a diagnosis, prescribe treatment, or replace a consultation with a healthcare professional.
Its purpose is different: to help people consistently record information about their condition, gain a clearer view of their own medical history, and, when necessary, provide their doctor with a more understandable context.
We believe that a good tool in this field should not attempt to replace a healthcare professional, but rather reduce the amount of information that is lost, forgotten, or poorly organized between the patient and the doctor.
Why PWN-ALL is working on this project
Most of our public work is related to cybersecurity and the development of secure software. But that is precisely why this project is particularly close to our hearts.
Medical data falls into a category of information where architectural decisions, privacy, and the developer’s approach to security have a direct impact on the user.
In this project, we have combined secure software engineering, mobile development, and the expertise of medical professionals from several countries around a single principle: personal information must remain private, and technology should help manage it without becoming yet another source of risk.
We are currently wrapping up the next phase of work on the app.
More details will follow in October.