Privacy Policy - Number System App

English Version

This Privacy Policy explains how the "Number System" mobile application (the "App" or "Service") developed by Learn24 (referred to as "we," "us," or the "Developer") collects, uses, maintains, and discloses information collected from users ("User" or "you").

1. Age Restriction and Target Audience

The "Number System" App is intended for a general audience and is NOT directed to children under the age of 13. If we learn that we have collected personal data from a child under 13 without verifiable parental consent, we will take steps to delete that information promptly.

2. Information We Collect (Directly)

We only collect minimal information necessary for the functioning and gamification of the App:

Information Type	How it is Collected?	Purpose of Use
User Name	Voluntarily set by the User in the Profile.	To display on the Leaderboard and personalize the user profile.
Profile Avatar	Selected by the User from a defined list.	To customize the personal profile.
Quiz Results & Statistics	Upon completion of quizzes.	Stored in our Firebase Datastore to manage the Leaderboard and display personal statistics (Total Coins, XP, correct/wrong answers).
Coins and XP	Earned through various actions (quizzes, daily bonuses, ads).	To operate the gamification system and allow participation in quizzes.
Quiz History & Bookmarks	During app usage (Conversions).	Stored in the User's Local App Storage (device) for review and future reference.
Theme & Language Settings	When the User changes settings (Dark/Light, Bangla/English).	Stored in Local App Storage to ensure the app opens according to user preference.

3. Third-Party Ad Networks and Advertising

We use third-party advertising partners, including Google AdMob, to display various ad formats (Banner, Interstitial, and Rewarded Ads) within our App.

• **Information Collected by Ad Networks:** These advertising partners may collect and use information about your device (such as your device identifier and IP address) and your activity over time and across different apps and websites to provide relevant, targeted advertising (Personalized Ads).
• **AdMob Privacy Link (Google Play Requirement):** For information on how Google AdMob collects and uses data, please refer to the official Google AdMob privacy policies here: Google Privacy Policy.

4. Data Storage, Retention, and Security

• Firebase Datastore: Critical data like quiz results, scores, coins, and XP are securely stored on our backend service (Firebase).
• Data Retention Policy: We retain User data as long as the user account is active. If an account is deleted or becomes inactive for a prolonged period, we reserve the right to initiate the data deletion process in accordance with Firebase's standard retention policies.
• Local App Storage: Quiz history, bookmarks, and settings are stored only on the User's local device. This data is not uploaded to our servers.
• Data Sharing: We **do not sell, rent, or trade** your personal information. We only share non-personally identifiable aggregate data with third parties for analytics and operational purposes, as needed for ad delivery.

5. Policy Updates

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page. You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.

6. Contact Us

If you have any questions about this Privacy Policy, please contact us at: milton2913@gmail.com