Privacy Policy

1. General information

We respect your privacy. This policy explains what data is collected, how it is used, and how you can control it. Our app does not require registration and does not transfer your data to any server.

2. Data collected

All user data (settings, progress, language, training results) are stored locally in your browser or in the PWA cache. We do not have access to this data and do not share it with third parties.

3. Donations

You can support the project via:

• PayPal (Europe) S.à r.l. et Cie, S.C.A. — processed according to their Terms and Privacy Policy;
• Monobank (Universal Bank JSC) — through a public donation “jar”.

Payment details are handled by these payment providers. We do not collect or store any transaction data.

4. Analytics

We use Google Analytics (GA4) to understand how users interact with the app and to improve its functionality. Data is collected in aggregate form. IP addresses are anonymized, and the information is not used for personalized ads. You can restrict analytics collection using your browser’s Do Not Track mode or privacy extensions.

5. Cookies

We use minimal technical cookies required for correct app operation and interface language saving. These cookies do not contain personal data.

6. Data deletion

All data is stored only in your browser. To delete it, clear site data or browser cache. For PWA — uninstall the app. All local data will then be permanently removed.

7. Children

The app is not intended for children under 13. We do not knowingly collect data from children.

8. Policy updates

We may periodically update this policy. The latest version is always available in the app.

Last updated: October 2025