At CardLedger, developed by IND Tech Mark, we prioritize the privacy and security of our users. This Privacy Policy details how the CardLedger mobile application handles user data, confirming our commitment to privacy and transparency.

1. Offline Architecture

CardLedger is built to operate entirely offline. The application does not establish connections with external database servers or clouds. All game configurations, round scores, streaks, history, and player profiles are processed locally on your Android device.

2. Data Collection and Third-Party Integrations

CardLedger is an offline-first application. We do NOT collect, store, or transmit gameplay data, player names, scores, bids, tricks, or match history to our own servers. All gameplay information remains stored locally on the user's device.

The app integrates third-party services to support its ongoing development and keep the app free. Specifically, the app integrates:

  • Google AdMob
  • Google User Messaging Platform (UMP)

These Google services may process your Advertising ID, IP Address, Device information, Diagnostic information, and Advertising-related information for serving, measuring and improving advertisements according to Google's Privacy Policy. IND Tech Mark does not collect, receive, or access any of this information.

Details regarding each integrated third-party service are provided below:

  • Google AdMob: We use Google AdMob to display advertisements on selected screens. Google AdMob may automatically collect information from your device, including your Advertising ID, IP Address, Device Type, Operating System, Language, Approximate Location (derived from IP), and Diagnostic Information. This data is used by Google for serving, measuring and improving advertisements.
  • Google User Messaging Platform (UMP): Google User Messaging Platform (UMP) is used for consent management. Depending on the user's region, Google may request consent for personalized or non-personalized ads. Users can review or update consent whenever Google provides this functionality.

For more details on how third-party services process data, please refer to the following documentation:

3. Local Storage

All data tracked within the app (such as match scoreboards, names of players, and win counts) is written to a private SQLite database inside the app's local sandbox storage directory on your device. This data is not accessible by other applications and remains exclusively on your hardware.

4. Database Backups

CardLedger provides an Export Database utility in settings. This backup file is compiled locally and saved to the location specified by the user (local folders, USB drives, or personal cloud storage platforms like Google Drive). Users retain full control over where backup files are transferred, saved, and restored.

5. Children's Privacy

CardLedger itself does not collect personal identifiers. CardLedger is intended for a general audience. Google AdMob is configured to comply with applicable child privacy regulations, including COPPA, and personalized advertising is disabled where required.

6. Third-Party Services

This app uses:

  • Google AdMob
  • Google User Messaging Platform (UMP)
  • Google Play Services

These third-party services operate according to Google's own privacy policies and terms of service. Since these services are provided and managed by Google, data collection and processing related to them are subject to Google's policies rather than this Privacy Policy.

7. Changes to This Privacy Policy

We may update our Privacy Policy from time to time. Since the app works offline and has no communication servers, any updates will be detailed on this website page. We encourage you to review this page periodically for any modifications.

8. Contact Information

If you have any questions or feedback regarding our privacy practices, please contact us at:

IND Tech Mark
Email: [email protected]