About Us

The Story of BloodPressureDB

Horst Klier's hypertension journey began in 2002 in his early 30s when high blood pressure was detected during a hospital stay. As an office worker, the programmer had little muscle, was overweight, and was encouraged by his doctor to exercise and lose weight. This was meant to help him manage his blood pressure initially without much success. This trigger laid the foundation for the later development of his app BloodPressureDB, which allows for easy and quick documentation and evaluation of daily blood pressure measurements regardless of the blood pressure monitor or operating system.

From Excel Spreadsheet to Blood Pressure App

Normalizing blood pressure was Horst Klier's goal, initially through changes in exercise and dietary habits, later through medication. Regardless of the form of therapy, regular collection and documentation of blood pressure readings is essential. As a working professional, Horst Klier found it very cumbersome to send his three to four self-measurements per day from the office via email to his own computer to transfer them into an Excel spreadsheet in the evening. Therefore, he set up the website www.bloodpressuredb.com in 2009 to record his values. Since the site was still public, he gradually received more inquiries from interested parties who also wanted to use this option. By March 2011, the web solution was available for other users, and shortly thereafter, the app version followed.

BloodPressureDB Grows Up

The app and website were and are free to use. Enthusiastic users increasingly asked for a way to support the work and voluntarily donated for it. To give something back to these people, Horst Klier invented the premium membership, which offers some additional features compared to the free version. The revenue finances the operation and further development. Meanwhile, there is a small team of programmers, editors, and of course support staff who take care of BloodPressureDB.

In 2020, klier.net GmbH & Co. KG was founded with the goal of getting the app included in the DiGA directory. This would have made the app reimbursable by statutory health insurance. We also began the approval process as a medical device. From 2021 to 2023, BloodPressureDB was a medical device. This directly supported the therapy for hypertension. The app enables guideline-compliant recording of blood pressure data and transmission to the doctor.

After 4 years of intensive efforts with a team of consultants and a research institute by our side, we decided in December 2023 to end the path. The core of the app, the blood pressure recording and thus the control over one's own blood pressure, would never be accepted by the BfArM as a DiGA, and some requirements would force us into a worse product. At the same time, a change in legislation (MDR - Medical Device Regulation) prohibits us from making significant innovations in the app. This would mean a new, complex, and costly certification. We are giving up the medical device approval. klier.net GmbH & Co. KG will be closed by the end of the year.

Since 2024, we are therefore putting the patient back at the center. The corresponding version will be operated by klier.net International S.L.

Why We Do This

Those who have their blood pressure under control live longer and with a higher quality of life. Measurements can be easily performed at home with affordable devices. With our app, these measurements are recorded and processed in such a way that the treating physician has a better basis for therapy. This improves the health of our users.

Our Commitment

Our service supports the patient in therapy. With BloodPressureDB, home measurements can be easily conducted according to the guidelines.
Additionally, we enhance health literacy with numerous offerings. Our Infothek explains the basics and technical terms. With the Infomail, we have created a kind of blood pressure course via weekly email. This allows our customers to gradually build their knowledge. This enables conversations with the doctor on equal footing.
Thus, we support the preservation of heart health.
All medical information is professionally reviewed.


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