Privacy policy

This is a translation for convenience. In case of doubt, the German version is legally binding: German version.

1. Data protection at a glance

General information

The following notes give you a simple overview of what happens to your personal data when you visit this website. Personal data is any data that can be used to identify you personally.

The Trendcurve iOS app and this website should be considered separately: the app stores your weight and health data exclusively on your own device. Details are in section 7.

Data collection on this website

Data processing on this website is carried out by the website operator. You can find their contact details in the legal notice.

2. Hosting

This website is hosted by Hetzner Online GmbH, Industriestr. 25, 91710 Gunzenhausen, Germany. For details please refer to the provider's privacy policy.

This hosting provider is used on the basis of Art. 6 (1) (f) GDPR. We have a legitimate interest in presenting our website as reliably as possible.

3. General information and mandatory disclosures

Data protection

The operators of these pages take the protection of your personal data very seriously. We treat your personal data confidentially and in accordance with the statutory data protection regulations and this privacy policy.

Controller

The controller responsible for data processing on this website is:

Johannes Müller
Simone-Veil-Strasse 30
53121 Bonn
Germany
Email: [email protected]

4. Data collection on this website

Cookies

Our website uses cookies. Some of them are technically necessary, others are only set with your consent (analytics cookies).

You can change your cookie settings at any time via the cookie banner. Technically necessary cookies are stored on the basis of Art. 6 (1) (f) GDPR. Analytics cookies are only set with your consent (Art. 6 (1) (a) GDPR).

Language selection (cookie "kt_lang")

This website is offered in German and English. If you open the home page without specifying a language, we redirect you to the matching language version based on the language setting your browser transmits (the Accept-Language header). This evaluation happens only when the page is requested; the header is not stored.

If you actively pick a language from the selector in the navigation, we store that decision in a cookie named kt_lang. It contains only the code of the chosen language ("de" or "en"), has a lifetime of one year and allows no conclusions about you as a person. The legal basis is Art. 6 (1) (f) GDPR; our legitimate interest is to serve the website in the language you chose on every visit. You can delete the cookie at any time in your browser settings.

Server log files

The provider of these pages automatically collects and stores information in what are known as server log files, which your browser transmits automatically. These are:

Browser type and version
Operating system used
Referrer URL
Host name of the accessing computer
Time of the server request
IP address

This data is not merged with other data sources. It is collected on the basis of Art. 6 (1) (f) GDPR.

Support form

If you send us a message through the form on the support page, your message and, if you provide it, your email address are transmitted to our inbox via the messenger service Telegram (Telegram FZ-LLC, Dubai) and stored there in order to handle your request. Providing an email address is voluntary and only necessary if you would like a reply. To prevent abuse we keep a count of the messages received from your IP address in memory for a maximum of five minutes. The legal basis is Art. 6 (1) (b) or (f) GDPR (handling your request).

5. Analytics tools

Google Analytics 4

This website uses functions of the web analytics service Google Analytics 4, a service provided by Google Ireland Limited ("Google"), Gordon House, Barrow Street, Dublin 4, Ireland.

Google Analytics uses so called "cookies". These are text files stored on your computer that make it possible to analyse your use of the website.

Purpose of processing: We use Google Analytics to analyse the use of our website in order to improve it and make it more user friendly. Specifically we record:

Page views and time on page
Clicks on app download buttons (as event app_download_click)
Interest in Trendcurve Pro (as event premium_interest)
Interaction with FAQ elements (as event faq_expand)
Clicks on the download banner in blog articles (as event blog_cta_click)
Scroll depth (as event scroll_depth)

Legal basis: Google Analytics is used exclusively with your consent under Art. 6 (1) (a) GDPR. You can withdraw your consent at any time via the cookie banner.

Google Consent Mode v2: We use Google Consent Mode v2. This means Google Analytics only starts collecting data once you have actively agreed via the cookie banner. Without your consent no analytics data is transmitted to Google.

IP anonymisation: We have activated IP anonymisation. Your IP address is shortened by Google within member states of the European Union.

Opt out: You can prevent collection by Google Analytics by:

Choosing "Decline" in the cookie banner
Installing the browser add-on to disable Google Analytics: https://tools.google.com/dlpage/gaoptout

You can find more information about how Google Analytics handles user data in Google's privacy policy.

6. Your rights

You have the right at any time:

To obtain information about the personal data we store about you (Art. 15 GDPR)
To request correction of inaccurate data (Art. 16 GDPR)
To request erasure of your data (Art. 17 GDPR)
To request restriction of processing (Art. 18 GDPR)
To request data portability (Art. 20 GDPR)
To object to processing (Art. 21 GDPR)
To withdraw consent you have given (Art. 7 (3) GDPR)

You also have the right to lodge a complaint with a data protection supervisory authority about the processing of your personal data.

7. Trendcurve iOS app

The Trendcurve iOS app has no server of its own and no user account. All readings, body measurements, goals, markers and settings are stored exclusively on your device and used there to calculate the trend, change, forecast, milestones, balance, monthly reports and, if enabled, BMI. They are not transmitted to us or to third parties.

Apple Health (HealthKit)

If you enable the import, Trendcurve reads the "body mass" data type from Apple Health. The app never writes data back to Health. Health data is used exclusively for the functions of the app, never for advertising, marketing or data mining, and is never passed on to third parties. You can withdraw access at any time in the Health app under "Data Access & Devices" and remove imported entries in Trendcurve.

iCloud backup (optional)

If you enable the iCloud backup, Trendcurve stores a copy of your data in the key value store of your personal iCloud account. Transmission and storage are handled by Apple under the iCloud privacy terms; we have no access to it. The backup serves solely to restore your data on your own devices and can be switched off and deleted at any time.

In-app purchases (Trendcurve Pro)

Purchases and subscriptions are processed through Apple's App Store. To check and manage your entitlement, Trendcurve uses the service RevenueCat (RevenueCat, Inc., USA). In doing so a randomly generated anonymous user ID, the App Store receipts, the app version, the language and the device type are processed. No weight or health data is transmitted. The legal basis is Art. 6 (1) (b) GDPR (performance of a contract). More information: revenuecat.com/privacy.

No tracking in the app

The app contains no analytics or tracking services and uses no advertising IDs. Notifications and reminders are scheduled entirely locally on your device; there is no push service.

The current version of the app privacy policy can be found in the app under "Settings & more" and on the Apple App Store.