Privacy Policy

This Privacy Policy (the “Policy”) describes how Pavel Kudrna, registered at Stamicova 21, Jihlava, 58601, ID 07210639 (the “Operator,” “we”), processes personal data of users of the Who-Calling.eu mobile app (the “App”) and the website https://who-calling.eu/ (the “Website”).

In short: we process data necessary for the App to function (number lookup and identification, blocking unwanted calls), for security, service improvement, and to meet legal obligations. We share data only where necessary (e.g., IT service providers) and always securely.

1. Introduction

Protecting your privacy is important to us. This Policy explains what data we collect, why we process it, for how long, and what your rights are. By using the App or Website, you acknowledge that you have read this Policy.

2. Operator

The operator is Pavel Kudrna, Stamicova 21, Jihlava, 58601, ID 07210639, email: email@pavelkudrna.cz.

3. What data we process

3.1 Data you provide

  • Phone numbers you look up in the database.
  • Voluntary comments/ratings for phone numbers (publicly visible).
  • App settings and, if applicable, registration data if the App offers an account.

3.2 Data collected automatically

  • Device technical data (type, OS version, anonymized identifiers), App version.
  • Operational logs (IP address, date/time, error logs) for security and diagnostics.
  • Interaction data in the App to the extent necessary for functionality.

3.3 Third-party data

Comments about numbers are published along with the given number. Your name is shown only if you provide it.

4. Purposes and legal bases

  • <strong>Service provision and contract performance</strong> — number lookup, identification, call blocking.
  • <strong>Legitimate interest</strong> — service security, fraud prevention, feature improvements.
  • <strong>Consent</strong> — e.g., marketing messages or non-essential analytics.
  • <strong>Legal obligation</strong> — compliance with applicable laws.

5. Data sharing

  • IT, hosting, analytics, and support providers.
  • Public authorities where required by law.
  • No selling of data to third parties for their own marketing.

6. Transfers to third countries

Where transfers outside the EU/EEA occur, we use appropriate safeguards such as standard contractual clauses.

7. Retention periods

  • Operational and security logs: typically 6–24 months.
  • Account/contract data: for the duration of the service and the necessary period thereafter.
  • Public comments/ratings: until deleted by the user or removed by moderation.

8. Your rights (GDPR)

  • Right of access.
  • Right to rectification and erasure.
  • Right to restriction and to object.
  • Right to data portability.
  • Right to lodge a complaint with the Supervisory Authority.

Send requests to email@pavelkudrna.cz. For security reasons, we may ask you to verify your identity.

9. Security

We use technical and organizational measures (encryption, access control, backups).

10. Cookies and similar technologies

The Website may use cookies. Necessary cookies ensure functionality; performance/analytics and marketing cookies are used only with your consent.

11. Changes to this Policy

We may update this Policy. We will publish the new version on this page or in the App; for material changes we may notify you.

12. Contact

Questions and requests regarding personal data:

Effective date: 25.10.2025