Privacy Policy
Last updated: March 27, 2026
At HÄK, we take the protection of your personal data very seriously. This policy details how we collect, use, and protect your information.
1. Data Collected
- Account information: email, username upon registration
- Usage data: sessions followed, progress, preferences
- Technical data: device type, browser, anonymized IP address
- Payment data: processed exclusively by Stripe, we never store your banking details
2. Use of Data
- Provide and improve our services
- Personalize your experience and recommendations
- Send essential communications (account updates, security)
- Analyze usage to improve the application (anonymized data)
3. Data Sharing
We never sell your personal data. We only share your data with:
- Firebase (Google): hosting and database
- Stripe: payment processing
- RevenueCat: subscription management
- Google Analytics: anonymized marketing site statistics
4. Your Rights (GDPR)
Under the GDPR, you have the following rights:
- Right of access: obtain a copy of your data
- Right to rectification: correct inaccurate data
- Right to erasure: request deletion of your data
- Right to portability: receive your data in a structured format
- Right to object: object to the processing of your data
5. Cookies
We use essential cookies for service operation. Analytical cookies (Google Analytics) are only used on the marketing site with your consent.
6. Security
Your data is hosted on secure servers (Firebase/Google Cloud). Communications are encrypted via HTTPS. Access to data is strictly limited.