myHHD: Terms of use

Effective from 11 November 2026 The Czech version is the original; other languages are translations.

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These terms apply to the use of the myHHD app at myhhd.app. By using the app you agree to them. How the app handles your data is described in the privacy policy.

What the app is

myHHD is a home haemodialysis diary and supply tracker. It is developed and run by a private individual, Tomáš Kosina, himself a home haemodialysis patient. The app is free, with no ads and no registration.

Not a medical device

The app is for record keeping only. It does not diagnose, does not recommend treatment or dialysis settings and does not replace the instructions of your doctor, nurse or dialysis centre. Decisions about your treatment are always made by your doctor and centre.

Calculations, supply forecasts and suggested orders are based on the data and rules you enter and may be inaccurate. Check orders and important values before using them. If you have health problems, contact your centre or the emergency services.

Your data

Your data is stored on your device and, if you turn on sync, in your own Google Drive. The author has no access to it and cannot restore it. You are responsible for backups: we recommend turning on sync or saving a backup regularly (Settings > Data). Details are in the privacy policy.

No warranty

The app is provided free of charge, as is. The author tries to keep it reliable but does not guarantee that it will always be available, free of errors or suitable for your particular purpose. To the extent permitted by law, the author is not liable for any damage arising from using or being unable to use the app, such as lost data, running out of supplies or an incorrect order. This does not affect any rights you have by law that cannot be excluded by agreement.

Changes and discontinuation

The app is under continuous development and features may change or be removed. The author may limit or discontinue the app; where possible, this will be announced in advance in the app and on the website. Your data on your device and in Google Drive will remain and you can export it at any time.

Third-party services

Sync uses Google Drive, which is subject to Google’s terms. The app is delivered by Cloudflare. Orders and exports are sent through your email or another app; the author is not responsible for their delivery.

Using the app

You may use the app free of charge for yourself or to care for someone close to you. Do not interfere with its operation or try to get around its security. The app, its design and texts are the author’s work; copying them or presenting them as your own is not allowed.

Donations

Supporting the author (Settings > About the author) is a voluntary gift. It does not entitle you to any feature, support or continued operation of the app and is not refundable.

Changes to these terms

These terms may change. The new version will be published on this page with its effective date; significant changes will also be announced in the app under What’s new. By continuing to use the app you agree to the new version.

Governing law and contact

These terms are governed by the law of the Czech Republic. Consumers keep the protection given to them by the laws of the country where they live. Questions and comments: Tomáš Kosina, contact@myhhd.app.