Privacy Policy

This website works without an account. Your learning progress stays in your browser and is never sent to a server of this website.

Your learning data

Answers, mock exams and settings — including your choice of language and federal state — are stored only locally in your browser. There are no user accounts and no database; nobody but you can see this data. Answers older than 90 days are removed automatically. Settings → Delete all data removes everything at any time.

Web analytics (Google Analytics)

This website uses Google Analytics only if you explicitly switch it on in Settings (consent, Art. 6(1)(a) GDPR). Without your consent nothing is loaded and no analytics cookie is set. With consent, Google Ireland Limited receives page views and usage events — such as which questions were answered, which mock exams were completed and which settings were changed — as well as technical connection data such as your IP address and browser information; data may be transferred to the USA. You can withdraw your consent there at any time; the analytics cookies are then deleted.

Advertising (Google AdSense)

This website shows advertising through Google AdSense, a service of Google Ireland Limited. Ads appear as full-page insertions between pages; the website itself places no advertising inside the content. To deliver ads, Google processes connection and device data (such as your IP address and browser information) and sets advertising cookies; personalised advertising appears only with your consent, which Google obtains through its own dialog (Art. 6(1)(a) GDPR), where your choice can be changed at any time. Data may be transferred to the USA. With an unlock code redeemed in Settings, the website loads no advertising scripts at all — you then see no ads.

Hosting

The website is operated on Vercel Inc. (USA). When pages are requested, your IP address appears in server logs for technical reasons (Art. 6(1)(f) GDPR); this website does not evaluate them. The site makes no connections to third-party servers other than those named on this page.

Controller

The person named in the Impressum is responsible for the data processing on this website.

Your rights

Under the GDPR you have the right of access, rectification, erasure, restriction of processing, data portability and objection, and the right to lodge a complaint with a data protection supervisory authority. Consent you have given can be withdrawn at any time with effect for the future.

Last updated

Last updated on 3 September 2026.