Effective date: July 16, 2026
1. Information We Collect
At signup we collect a username, password (stored encrypted), name, and email address.
If you sign in with Google or Apple, we collect the identifier and email address provided by that service.
While using the Service, we store memorization progress, grades, bookmarks, and settings (theme, language).
For advertising and service improvement, advertising identifiers (Android Advertising ID, Apple IDFA), cookies, and device/usage information may be processed automatically.
2. How We Use Information
Collected information is used only for login authentication, progress tracking, improving the Service, and serving ads.
3. Cookies, Advertising Identifiers, and Ads
On the web, the Service uses essential cookies to keep you logged in, and may use advertising cookies (such as DoubleClick cookies) to serve ads through Google AdSense.
In the app, the Service may use advertising identifiers (Android Advertising ID / Apple IDFA) to serve ads through Google AdMob.
Google and other third-party vendors use cookies and advertising identifiers to serve ads based on a user's prior visits and usage.
You can opt out of personalized advertising via Google Ads Settings (adssettings.google.com), and opt out of third-party vendor cookies via aboutads.info. In the app, you can reset your advertising ID or opt out of personalized ads in your device settings.
For users in regions requiring consent (EEA, UK, etc.), a consent flow is presented via Google's consent management tools (UMP/Funding Choices) before ads are shown.
For more on how Google uses advertising and data, see policies.google.com/technologies/partner-sites.
4. Data Retention and Deletion
You can delete your account and stored learning records at any time from the Settings page.
Upon account deletion, collected personal information is destroyed without delay, except where retention is required by law.
5. Third-Party Sharing
We do not share collected personal information with third parties except as required by law. Advertising partners such as Google may process information via cookies or advertising identifiers to serve ads.
6. Children's Privacy
The Service is not directed primarily at children. Children under 14 may use the Service only with the consent of a parent or legal guardian.
7. Contact
For privacy-related inquiries, please reach out through the contact channel in the app or by email at dksk1234234@gmail.com.