Privacy policy

Last updated: 11 August 2026.

1. Controller

dionics media UG (haftungsbeschränkt), Birkhuhnweg 8, 31303 Burgdorf, Germany — websites@dionics.ai. See the imprint.

2. The calculators run in your browser

Everything you type into a calculator — loan amounts, body weight, project figures — is processed locally in your browser and never transmitted to us. There are no accounts, no payments, and nothing you calculate is stored on any server of ours.

3. Server logs

Our hosting provider (Vercel Inc., USA) processes IP address, time, requested URL, referrer and browser data in server logs to deliver the site and keep it secure — legitimate interest, Art. 6(1)(f) GDPR; US transfers are safeguarded by standard contractual clauses and Vercel's Data Privacy Framework certification.

4. Analytics — only with consent

Google Analytics 4 (Google Ireland Ltd.) loads only after you choose "Accept all" in the cookie banner (Art. 6(1)(a) GDPR, § 25 TDDDG), with IP anonymisation. Choosing "Necessary only" loads nothing, and you can change your mind by clearing the site's cookies, which brings the banner back.

5. Contact

If you contact us, we process what you send us in order to reply (Art. 6(1)(f) GDPR) and keep it no longer than the conversation requires.

6. Your rights

Access, rectification, erasure, restriction, portability, objection (Art. 15–21 GDPR) via websites@dionics.ai; complaint to Die Landesbeauftragte für den Datenschutz Niedersachsen, Prinzenstraße 5, 30159 Hannover (Art. 77).