Privacy Policy
Clear, human language — not legal jargon.
Last updated: January 1, 2026.
1. Introduction
This privacy policy describes how Calmika — operated by Dávid Kovács, sole trader (Hungary) — handles personal data on the calmika.com website and in the Calmika mobile app.
Data is processed solely for operating and improving the app and website. We do not sell data to third parties, and we do not use targeted advertising systems.
2. What data do we collect?
We collect minimal data. Specifically:
- Email address — only if you provide it yourself (e.g. beta registration, contact form)
- Device type — for anonymous analytics (Vercel Analytics)
We do not automatically collect any other personal data.
3. Children's data — IMPORTANT
🛡️ We do NOT collect personal data about children. The app works locally; data stays on the device — it never reaches our servers.
Children's profile data (name, age, preferences), developmental records and usage history are stored exclusively on the device, in offline mode. We cannot see, store, or access this data.
This isn't just a legal obligation (COPPA, GDPR) — it's our ethical principle. In an app built for children, privacy comes first.
4. Cookies
We use minimal cookies:
- Language preference — to remember your selected language
- Anonymous analytics — page visit counts via Vercel Analytics (no personal data)
5. Third parties
We use two external services:
- Vercel Analytics — anonymous page visit statistics (IP is not stored)
- RevenueCat — subscription management (payment data is handled by Play Store / App Store, not us)
No other third party has access to your data.
6. Data deletion
If you'd like to delete your email address or any other data we hold, contact us:
7. Contact
For privacy questions or deletion requests, reach us at:
8. Changes
If we make significant changes to this policy, we'll notify you by email (if you provided your address) and update the "Last updated" date. Minor, non-material changes will not be announced separately.