Last updated: February 8, 2025

Thank you for using “Учим греческий с Эффи” app! This Privacy Policy explains how we handle any personal data you provide while using our free iOS application. Our goal is to collect and use only the minimum information necessary to enable core app functionality.

1. No Sales or Marketing

• We do not sell products or services within the app.
• We do not display ads or send marketing emails.

2. Data Collection and Use

• User Authorization: The app includes a login/sign-up feature to sync your course progress across your devices.
• Course Progress: We collect only the data needed to track your course progress (e.g., lesson completion).
• Storage with Firebase: We use Firebase (a service provided by Google) to store and manage your course progress data. Firebase may process basic technical data as required to provide its services (e.g., device identifiers or app diagnostic information).

3. Data Sharing

• We do not sell, rent, or exchange your personal information.
• Your course progress data is shared only with Firebase for storage and synchronization purposes. For more information on how Firebase handles data, please see Firebase Privacy and Security.

4. Data Retention

• We keep your course progress data as long as your account remains active to ensure you can access and sync your progress.
• If you delete your account or request that we remove your data, we will delete your course progress data from Firebase.

5. Security

• We use reasonable security measures (including encryption in transit) to protect your data and rely on Firebase’s built-in security features.
• No method of transmission or storage is entirely secure, but we strive to follow industry best practices.

6. Children’s Privacy