Last updated: May 17, 2026
This Privacy Policy describes how the "Czech for Slavs" mobile and web application ("the App") handles information. The App is a Czech language learning tool for Ukrainian and Russian speakers.
We do not collect, store, or transmit any personal data to our servers.
The App does not require user accounts, email addresses, or any form of registration. We do not collect names, contact information, location data, device identifiers, or analytics.
The App stores the following information locally on your device using your browser's or device's local storage:
This data never leaves your device. Clearing the App's data or uninstalling the App will permanently delete this information.
When you use the AI chat feature, your messages are sent to a third-party AI provider (Groq) to generate responses. These messages are:
For information about how Groq handles data, see Groq's Privacy Policy.
The App uses your device's microphone for pronunciation practice. Speech is processed by your device's built-in speech recognition system. We do not record, store, or transmit audio.
Text-to-speech (hearing Czech words spoken) is generated on your device and does not involve any external server.
The App uses the following third-party service:
The App does not contain advertising, third-party analytics, crash reporting tools, or tracking SDKs.
The App is suitable for all ages. Since we collect no personal data, the App is compliant with child privacy regulations including COPPA and GDPR-K.
Because we do not collect personal data, there is no data for us to access, modify, or delete. You have full control over locally stored data through your device settings.
We may update this Privacy Policy from time to time. Changes will be reflected on this page with an updated "Last updated" date.
For questions about this Privacy Policy, contact: fiser.mat@seznam.cz