Terms of use & liability

As of 12 November 2026 · Provider: David Trynogga, Hüttenstraße 32, 40215 Düsseldorf, Germany.

1. What the app is for

Blutdruck-Tracker is a documentation and overview app. It does not measure blood pressure or pulse, makes no diagnosis and gives no treatment or medication advice. It is not a medical device. Values, medians and PDF summaries serve only as a personal overview and do not replace medical advice.

Please do not base health decisions on the app alone, and talk to your doctor about symptoms or unusual readings. In an emergency, call your local emergency number (112 in Germany and the EU).

2. Recognition and correctness of values

Automatic value recognition is a suggestion and can make mistakes, for example with reflections, shadows or unknown displays. You check every value before saving and are yourself responsible for the correctness of the saved data and of the PDFs you share.

3. Care and errors

The app is developed with care and tested before release. Software can never be completely free of errors. Your statutory warranty rights remain unaffected.

4. Data storage and backups

For privacy reasons all data, including photos, is stored only locally on your device; there is no cloud and no server sync. Data can therefore be lost, for example through loss or failure of the device, deletion of the app or problems with system updates.

We recommend using the iOS device backup. The PDF export is also suitable as a backup of your entries.

5. Price, updates and duration

At launch the app is free. The provider may later introduce a one-time purchase price for new users. Anyone who downloaded the app before such a price change keeps it permanently free of charge.

Updates and further development continue for as long as the provider offers and maintains the app. There is no entitlement to unlimited further development or availability. Statutory duties to provide updates remain unaffected. If the provider discontinues the app, this will be announced in reasonable advance.

6. Liability

(1) The provider is liable without limitation for intent and gross negligence, for injury to life, body or health, under the Product Liability Act, for fraudulently concealed defects and where a guarantee has been given.

(2) In cases of simple negligence the provider is liable only for breach of essential contractual obligations, i.e. obligations you may regularly rely on, and limited to the typical, foreseeable damage. For loss of data the provider is liable only up to the effort that would have been needed to restore the data had you made regular backups appropriate to the risk.

(3) As long as the app is provided free of charge, the provider is not liable beyond paragraph 1 for simple negligence.

(4) Otherwise liability is excluded to the extent permitted by law.

7. Notes on Apple

These terms apply between you and the provider, not Apple Inc. (“Apple”). The provider alone is responsible for the app and its content. You receive a non-transferable licence to use the app on Apple devices you own or control, within the usage rules of the Apple Media Services.

The provider alone is responsible for maintenance and support (see the contact form on the website); Apple has no such obligation. If the app fails to conform to an applicable warranty, you may notify Apple, which may refund the purchase price; beyond that Apple has no warranty obligation. Claims relating to product liability, consumer protection or infringement of third-party rights are the provider’s responsibility, not Apple’s.

You confirm that you are not located in a country subject to a US government embargo and are not on any US list of prohibited or restricted parties. When using the app you comply with applicable third-party terms, for example your mobile data agreement. Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them against you.