Privacy policy

Kopfweh keeps everything on your device. There is no account, no analytics and no server of ours. For the weather, the approximate location goes to Apple Weather.

Last updated: 7 October 2026

The German version is binding. Datenschutz (Deutsch)

Who is responsible

Responsible for this app and this website is the operator of Kopfweh, reachable at kopfweh@bognar.net.

What stays on the device

All attacks, medications and weather values are kept in the app's protected area on your iPhone or iPad. They are not sent anywhere.

No account, no identifier, no analytics, no advertising SDK.
Your device's iCloud backup includes the app's data; that is Apple's service, not ours.

What the app loads from the network

The app only calls Apple Weather (WeatherKit) when it fetches the weather for an attack or a day. The location, rounded to about one kilometre, goes to Apple, without any details about you or your attacks.

The app only asks for the location while it is open. Without permission it works without weather.

weatherkit.apple.com: weather for the start of an attack, for days without an attack and for the Today screen.

This website

The website is static and sets no cookies. The host (Cloudflare) processes technical connection data when you visit.

Your rights

Since we store no data about you, there is nothing to inspect or delete on our side. Deleting the app removes every entry. Questions go to kopfweh@bognar.net.

Legal basis

This website is governed by the Swiss Data Protection Act (revFADP) and, where applicable, the GDPR.

Changes

If something changes, it appears here with a new date.