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Privacy Policy

This English version is provided for convenience only. The legally binding version is the German one.

This privacy policy covers two products. Please refer to the relevant part:

  • Part A – Privacy on this website (wettergram.de)
  • Part B – Privacy in the Wettergram app (iOS and Android)

The details on the controller (A 1), your rights (A 7) and the right to lodge a complaint (A 8) apply to both products alike.

Part A – Privacy on this website

A 1. Controller

Johann Brockstedt
Burkamp 1, 24220 Flintbek, Germany
Email: wettergram1@gmail.com

A 2. Overview

This website processes personal data to the following extent: technical access data via the hosting provider, IP addresses when loading external resources, and anonymous visitor statistics without cookies (TelemetryDeck). Only functional data is stored in your browser's local storage. Cookies are set only by the GetYourGuide widget, and only after your consent (A 3). Separate information applies to the app (iOS and Android) – see Part B.

A 3. Cookies & local storage

This website itself sets no tracking cookies. Only the following functional data is stored in your browser's local storage, without transmission to any server:

  • Your language setting (German/English)
  • Your dark-mode preference
  • Whether you closed the note about the Wettergram app (so it does not reappear)
  • Your choice in the cookie notice for GetYourGuide (allowed/declined)

Legal basis: Art. 6 (1) (f) GDPR (legitimate interest in the proper operation of the website functions). This data remains locally on your device.

GetYourGuide cookies only with consent:The GetYourGuide activities widget (see A 5) sets cookies. It is only loaded once you choose "Allow" in the cookie notice or tap "Show activities" on a destination page. Legal basis: Art. 6 (1) (a) GDPR and § 25 (1) TDDDG (consent). You can withdraw your consent at any time with effect for the future via the "Cookie settings" link at the bottom of every page.

Until 8 October 2026 this website used Google Analytics with your consent. If you consented at that time, Google Analytics cookies may still be stored in your browser; they are no longer used and can be deleted in your browser settings (Settings → Privacy → Clear site data).

A 4. Visitor statistics (TelemetryDeck)

Anonymous visitor statistics (TelemetryDeck)– To see which pages are read and which links to the App Store, to Google Play or to booking and partner offers are clicked, this website uses the TelemetryDeck service of TelemetryDeck GmbH, Von-der-Tann-Str. 54, 86159 Augsburg, Germany. When a page is opened, the page address (without search details), the previously visited page (referrer) and your browser's language setting are transmitted. When such a link is clicked, the destination (for partner offers only the provider's name) and the page on which it was clicked are transmitted as well.

No cookies are set for this and no information is stored on or read from your device. From the identifier of this website, the date and parts of your IP address, TelemetryDeck forms a hashed identifier that changes daily; your IP address itself is not stored. It is therefore not possible to identify you. TelemetryDeck contractually warrants that it does not receive any data allowing individual persons to be identified, and uses its own service providers for operation and hosting.

Legal basis: Art. 6(1)(f) GDPR. Our legitimate interest is to learn, with as little data as possible, which content of this website is used. More information: telemetrydeck.com/privacy

Until 8 October 2026, this website additionally used Google Analytics 4 of Google Ireland Ltd., Gordon House, Barrow Street, Dublin 4, Ireland, with your consent (Art. 6(1)(a) GDPR; IP truncation enabled). Google Analytics has not been loaded since then. Data already collected is deleted after the configured retention period of 14 months. Google privacy policy: policies.google.com/privacy

A 5. External services

When you use certain features of this website, requests are sent to the following external services. Your IP address is technically transmitted in the process. Legal basis: Art. 6 (1) (f) GDPR (legitimate interest in providing the website's functionality).

Open-Meteo (climate and weather data)
When loading climate and weather data: requests to open-meteo.com (Switzerland). According to its own statement, Open-Meteo does not collect personal data. open-meteo.com/en/terms

OpenHolidaysAPI (school holidays)
When retrieving school holiday data: requests to openholidaysapi.org. openholidaysapi.org

OpenStreetMap (map tiles)
When displaying maps (the world map and the mini-map on destination pages), map tiles are loaded from tile.openstreetmap.org (also in dark mode). Your IP address is technically transmitted to this provider. osmfoundation.org/Privacy_Policy

Windy.com (weather radar)
The weather page displays Windy's interactive rain and cloud radar (embed.windy.com) as an embedded frame (iframe). When it loads, content is fetched directly from Windy, transmitting your IP address to Windy. Legal basis: Art. 6 (1) (f) GDPR. windy.com/privacy-policy

Location request ("My location")
On the weather page you can optionally share your device location via the "My location" button. The coordinates are used solely in your browser to fetch the weather for your location (request to Open-Meteo) — they are not stored or transmitted to us. Sharing happens only after your explicit consent in the browser. Legal basis: Art. 6 (1) (a) GDPR (consent).

GetYourGuide (activities widget)
The destination pages can show a widget by GetYourGuide with relevant tours and tickets. It is only loaded after your consent (see A 3). Content is then fetched directly from getyourguide.com, cookies are set and your IP address and clicks on GetYourGuide links are transmitted to GetYourGuide for commission tracking (partner ID MOBIES4). Legal basis: Art. 6 (1) (a) GDPR and § 25 (1) TDDDG (consent), withdrawable at any time via "Cookie settings".

External booking portals & affiliate links
When you click one of the booking links (package holidays, flights, hotels, Airbnb, activities), you are redirected to an external provider. The name of the searched destination is transmitted as a URL parameter. These third parties are themselves responsible for their data processing. This website participates in the affiliate programmes of Check24, GetYourGuide and Booking.com. The Booking.com hotel link runs through the CJ Affiliate (Commission Junction) network: it first opens a CJ tracking address (kqzyfj.com), which may set a cookie on CJ's domain, and then forwards you to Booking.com so that a booking can be attributed to us. A commission may be earned on bookings made via these links; affiliate partners transmit technical tracking parameters for this. Legal basis: Art. 6 (1) (f) GDPR.

A 6. Hosting

This website is provided via an external hosting provider (Netlify). When the website is accessed, the hosting provider stores technical access data in server logs (IP address, date/time, requested URL, HTTP status code, amount of data transferred, referrer, browser identifier). This data is processed to ensure operation and prevent misuse and is generally deleted after 7–30 days. Legal basis: Art. 6 (1) (f) GDPR.

A 7. Your rights (Art. 15–22 GDPR)

With regard to your personal data, you have the following rights vis-à-vis the controller:

  • Access (Art. 15 GDPR): which data is processed
  • Rectification (Art. 16 GDPR): correction of inaccurate data
  • Erasure (Art. 17 GDPR): the "right to be forgotten"
  • Restriction (Art. 18 GDPR): restricted processing
  • Data portability (Art. 20 GDPR)
  • Objection (Art. 21 GDPR): to processing based on Art. 6 (1) (f)
  • Withdrawal of consent (Art. 7 (3) GDPR): at any time with effect for the future

Please send requests to: wettergram1@gmail.com

A 8. Right to lodge a complaint with a supervisory authority

You have the right to lodge a complaint with a data protection supervisory authority. The competent authority for Schleswig-Holstein:
Unabhängiges Landeszentrum für Datenschutz Schleswig-Holstein (ULD)
Holstenstraße 98, 24103 Kiel, Germany
www.datenschutzzentrum.de

Part B – Privacy in the Wettergram app (iOS and Android)

B 1. Scope & controller

This part applies to the "Wettergram" app for iOS (App Store) and Android (Google Play). The controller is likewise Johann Brockstedt (contact details see A 1). No user account is required for the app; no registration takes place.

B 2. Anonymous usage statistics

So that we can see which features are used and where improvements are worthwhile, the Wettergram app collects anonymous usage statistics via TelemetryDeck (TelemetryDeck GmbH, Von-der-Tann-Str. 54, 86159 Augsburg, Germany).

No personal data is collected. In particular, no names, email addresses, location data, place names, searched cities or free text are transmitted. No user account is created and no advertising ID is used. No tracking across apps or websites takes place.

The following is collected exclusively:

  • Content-free events:which area of the app was opened (weather, radar, map, trip planner, comparison, time travel, school holidays), that a place was saved (only as a size band "1", "2–3", "4+" – never which place), that a year was selected in time travel, that the daily reminder was enabled, that a booking link was tapped (only which provider – Check24, GetYourGuide, Booking.com, Airbnb or Google Flights – and where in the app, never which destination or travel period) and that weather data or the weather map could not be loaded (as a fixed error code such as "wetter.laden.offline", never with the error text).
  • Technical context data: app and system version, device model, language and region setting, time zone and a random session identifier.

To distinguish recurring installations, TelemetryDeck derives a hash value from device characteristics. It is computed on the device, cannot be reversed and is additionally salted with a random value on the server side. Conclusions about individual persons are therefore not possible.

Transmission can be switched off in the app at any time: "More" → "Legal" → "Privacy Policy" → "Send anonymous statistics" (at the very bottom of the page). At the moment it is switched off, the app sends one last event “statistics switched off” without any further data – so we only see how often the statistics are switched off. After that, no statistical data is transmitted.

The legal basis is our legitimate interest in the stable and needs-based further development of the app (Art. 6 (1) (f) GDPR). Further information: telemetrydeck.com/privacy

Local storage in the iOS app

Only the following functional data is stored on your device, without transmission to us: language setting; appearance (light/dark/system); units (°C/°F, km/h, mm) and forecast range; your saved destinations and places; the "Send anonymous statistics" setting. Legal basis: Art. 6(1)(f) GDPR. This data stays on your device and is removed when you delete the app.

External services in the iOS app

Using certain features sends requests to (Art. 6(1)(f) GDPR):

Open-Meteo (climate & weather) – open-meteo.com (Switzerland).
Apple WeatherKit (severe weather warnings)– For the place shown, the app asks Apple for official weather warnings. The place's coordinates, rounded to about 1 km, and, as with any internet connection, your IP address are transmitted. Apple's privacy policy applies. We do not receive any data.
OpenHolidaysAPI (school holidays) – openholidaysapi.org.
Apple MapKit (maps) – provided by Apple; Apple's privacy policy applies.
RainViewer & Windy (weather radar) – radar tiles / embedded radar are loaded directly from these providers, transmitting your IP address. windy.com/privacy-policy

Location ("My location") in the iOS app

On the weather page you can optionally share your device location. The coordinates are used only on-device to fetch the weather (request to Open-Meteo) — they are not stored or transmitted to us, and only after your explicit consent in the iOS dialog. Legal basis: Art. 6(1)(a) GDPR.

Widget: If you set up a Wettergram widget with "My location", iOS asks separately whether the widget may use your location; it likewise only fetches the weather from Open-Meteo. So that the widget shows the right place, the app keeps the last determined location (name and coordinates) and the names of your saved places on your device in the protected keychain. This information does not leave your device and is not transmitted to us.

Booking & affiliate links in the iOS app

Tapping a booking link opens an external provider in the browser; the destination name is passed as a URL parameter. The providers are responsible for their own data processing. The app participates in the affiliate programmes of Check24 and GetYourGuide. That a booking link was tapped is counted by the anonymous statistics (B 2) — only provider and place in the app, never the destination. Legal basis: Art. 6(1)(f) GDPR.

Notice of new versions

In the iOS app: to show you that a newer version of Wettergram is available in the App Store, the app asks Apple for the current version number at most every six hours (itunes.apple.com). Only the app's identifier and the country of your region setting are sent; as with any internet connection, Apple receives your IP address. We do not receive any data. The legal basis is our legitimate interest in pointing out updates (Art. 6(1)(f) GDPR).

In the Android app, the app asks the Google Play Store app on your device at most every six hours whether a newer version is available (Google Play in-app updates). Occasionally it asks for a rating via Google Play (in-app review); we do not learn whether or how you rate. Both run via Google Play; Google's privacy policy applies (policies.google.com/privacy). We do not receive any data.

Maps in the Android app

The Android app displays maps using the open-source library MapLibre. Map tiles are loaded directly from OpenFreeMap (openfreemap.org); map data © OpenStreetMap contributors. Your IP address is transmitted in the process. Legal basis: Art. 6(1)(f) GDPR.

Contact from the app

If you use “Suggest an improvement” or “Report a bug” in the app, your email app opens with a prepared message to kontakt@brockdesign.de. Only when you tap Send yourself are your email address and your message sent to us. The message visibly contains the app version, iOS or Android version, device model and app language – nothing else. We use this only to reply and delete it afterwards. Legal basis: Art. 6(1)(f) GDPR.

B 3. Your rights & right to complain

Your rights under Art. 15–22 GDPR (A 7) and the right to lodge a complaint with the supervisory authority (A 8) apply to the app accordingly. Please send requests to wettergram1@gmail.com.

Last updated

11 November 2026. This policy will be updated in the event of material changes to the data processing.