Privacy Policy

Below we inform you pursuant to Art. 13/14 GDPR about the processing of personal data when using fairvalue-calculator.com.

1. Controller

Dr. Peter Klein · Fair Value Calculator
Kameokastraße 9a
8720 Knittelfeld
Austria
E-mail: [email protected]

2. Server log files & hosting (Cloudflare)

When the site is accessed, data is automatically recorded in server log files (IP address, time, page requested, browser type). The legal basis is our legitimate interest in secure, stable operation (Art. 6(1)(f) GDPR). We use Cloudflare, Inc. for delivery and protection. Log files are deleted or anonymised promptly.

3. Cookies

We use strictly necessary cookies only (e.g. for login). No consent-based analytics or tracking is currently used.

4. Sign-in (magic link)

For your account and sign-in we process your e-mail address; sign-in is passwordless via a one-time link. Legal basis: performance of a contract / pre-contractual steps (Art. 6(1)(b) GDPR).

5. Payments (Stripe)

Paid subscriptions are processed by Stripe Payments Europe, Ltd. (Ireland); we do not receive full card details. Legal basis: performance of a contract (Art. 6(1)(b) GDPR). Transfers to the USA are based on the EU Standard Contractual Clauses.

6. E-mail delivery (Brevo)

Service e-mails (e.g. sign-in links) are sent via Brevo (EU) under a data processing agreement.

7. Market data

To provide the service we process third-party price and fundamental data. This generally does not involve personal data of users.

8. Your rights

You have the right to access, rectification, erasure, restriction, data portability and objection (Art. 15–21 GDPR), and to withdraw consent. Contact: [email protected].

9. Right to lodge a complaint

You may lodge a complaint with the Austrian Data Protection Authority: Barichgasse 40–42, 1030 Vienna(www.dsb.gv.at).

10. Retention & automated decisions

We retain data only as long as necessary or legally required. No automated decision-making with legal effect (Art. 22 GDPR) takes place; the valuations are general, non-personalised information.

The legally authoritative version of these documents is the German one.

Last updated: June 2026