Privacy Policy

Last updated: 29 July 2026

Babyn (the “App”) helps parents track their baby’s feeding, sleep, diapers, growth, health and appointments. This policy explains what personal data we process, why, and what rights you have.

We are established in Germany, so the GDPR applies directly to our processing. If you are in the European Economic Area, the EU General Data Protection Regulation (GDPR) applies to you. If you are in the United Kingdom, the UK GDPR applies. If you are in Türkiye, the Turkish Personal Data Protection Law (KVKK, No. 6698) may also apply to the processing of your data; a Turkish-language notice is available via the language switch above. Wherever you live, we apply the standards described here to everyone.

1. Data Controller

The App is operated by Halil Yılmaz (individual), Germany.
Contact for privacy matters: gizlilik@babyn.app

2. What Data We Process

We do not use advertising, we do not track you across other apps or websites, and we do not sell your data.

3. Purposes and Legal Bases

4. Where Your Data Is Stored

Your data is stored using Google Firebase (Cloud Firestore and Firebase Authentication), which acts as our data processor.

Your data is stored in the European Union. Our Firestore database is provisioned in Google’s eur3 multi-region (Europe). The App’s website and static files are hosted in Germany (Hetzner, Falkenstein).

Google LLC is based in the United States. Where Google processes data outside the EEA in the course of providing the service, such transfers are governed by the European Commission’s Standard Contractual Clauses and Google’s Data Processing Terms.

5. Service Providers and Data Sharing

Your baby’s records are visible only to users who share your family code (for example your partner or nanny). Our database security rules are configured so that unauthenticated users, and users who are not members of your family, cannot access your data.

We do not sell your data and we do not share it for advertising. We use only the following service providers, who act as our data processors under contract and process data solely on our instructions:

If you purchase a premium subscription, payment is processed by Google Play or the Apple App Store. We never receive or store your payment card details.

6. Retention

We keep your data until you delete it or delete your account. When you delete your account, your data is removed. You can also clear all records from within the App at any time without deleting your account.

7. Your Rights

Under the GDPR you have the right to:

To delete your account and all of your data, follow the steps at babyn.app/delete-account.html, or email gizlilik@babyn.app. We respond to requests within 30 days.

8. Automated Decision-Making

We do not carry out automated decision-making or profiling that produces legal or similarly significant effects. Growth percentiles are a purely informational calculation against WHO reference curves and are not medical advice.

9. Children’s Data

The App is intended for use by parents and caregivers (adults, 18+). It is not designed for or directed at children. Data about a baby is entered by the account holder acting as the parent or legal guardian, on their own initiative and responsibility.

10. Notifications

The App may ask for permission to send notifications (for example feeding or sleep reminders). This is entirely optional and can be revoked at any time in your device settings.

11. Changes to This Policy

We may update this policy. Significant changes will be communicated within the App. The current version is always published on this page.

12. Language

This policy is published in English and Turkish. The English version is the authoritative text; in case of any discrepancy between the two versions, the English version prevails.

13. Contact

For any question or request: gizlilik@babyn.app