Privacy Policy

Last updated: September 16, 2026

This Privacy Policy applies generally to mobile applications developed and published by the developer ("we", "us", or "our").

This policy explains how information may be handled when you use our applications.

Individual applications may have additional features, permissions, or data-processing practices. Where applicable, an individual application may provide additional privacy information specific to that application.

1. Information We Collect

We aim to minimize the collection of personal information through our applications.

Unless an application specifically states otherwise, we do not intentionally collect or store personal information such as your name, email address, telephone number, contacts, photographs, precise location, or other personally identifiable information on our own servers.

Some applications may process information locally on your device in order to provide their functionality. Such information may remain on your device and may not be transmitted to us.

Certain information may nevertheless be processed automatically by third-party services integrated into our applications. Such processing is governed by the respective third party's privacy policies and terms of service.

2. Information Stored on Your Device

Depending on the functionality of an individual application, information may be stored locally on your device.

Examples may include application settings, preferences, language selections, locally stored content, usage progress, purchase status, or other data required for the application to function.

Unless explicitly stated otherwise, locally stored application data is not automatically accessible to us.

3. Third-Party Services

Our applications may use third-party services to provide platform functionality, advertising, analytics, crash reporting, in-app purchases, authentication, or other services.

The third-party services used by a particular application may vary. When third-party services are used, they may collect or process certain information in accordance with their own privacy policies and terms of service.

Google Play Services

Our Android applications may use Google Play Services to provide Android platform and Google-related functionality.

Google Play Services may process certain information from your device or about your use of the services. The information collected and processed by Google is governed by Google's applicable policies and terms.

More information is available in Google's Terms of Service:

Google Terms of Service

Google AdMob

Some of our applications may use Google AdMob to display advertisements.

AdMob may collect and process information such as advertising identifiers, device information, IP address, approximate location, application interactions, and information related to advertising activity.

The type of information processed may depend on the user's device settings, applicable laws, consent choices, and the advertising configuration used by the application.

This information may be used for purposes including delivering advertisements, measuring advertising performance, improving advertising services, preventing fraud, and providing personalized or non-personalized advertising where applicable.

More information about AdMob is available at:

Google AdMob Terms

Google Play Billing / In-App Purchases

Some of our applications may offer optional in-app purchases, including purchases that allow users to remove or disable advertisements.

In-app purchases are processed through Google Play's billing system. We do not directly collect or store your payment card number, bank account information, or other payment credentials used to complete a purchase through Google Play.

Google Play may process information necessary to complete and manage the transaction, including purchase and transaction information, in accordance with Google's applicable policies and terms.

Our applications may receive limited information from Google Play regarding the purchase, such as the product purchased, purchase status, transaction or purchase identifiers, and entitlement status. This information may be used solely to verify the purchase and provide the purchased functionality, such as disabling advertisements.

We do not use payment information obtained through Google Play for advertising purposes.

For more information about Google Play's terms and policies, please visit:

Google Play Terms of Service

4. Advertising

Applications that use advertising may display advertisements provided by third-party advertising services such as Google AdMob.

Depending on your location, applicable law, consent choices, and device settings, advertisements may be personalized or non-personalized.

Some applications may provide an optional in-app purchase that allows you to remove or disable advertisements.

When the applicable purchase is successfully verified, the application may disable advertisements on the device or account according to the functionality of that application.

5. Payments and Purchase Information

We do not directly process your payment card, bank account, or other payment credentials.

Payments for in-app purchases are handled by Google Play. Google may collect and process payment and transaction information according to its own privacy policies and applicable terms.

We may process limited purchase-related information necessary to verify an entitlement and provide the purchased feature.

If you request a refund, cancel a purchase, or experience a billing problem, the applicable transaction may be handled through Google Play's billing and support systems.

6. Advertising and Your Choices

Advertisements displayed through AdMob may be personalized or non-personalized depending on applicable requirements, user settings, consent, and Google's advertising configuration.

You may be able to manage advertising preferences and your advertising identifier through your Android device settings.

Depending on your location and applicable law, you may also be presented with consent choices regarding personalized advertising.

7. Data Security

We take reasonable measures to protect information that we directly control.

However, no method of electronic storage or transmission over the Internet can be guaranteed to be completely secure.

Third-party services integrated into our applications are responsible for their own security and data-processing practices.

8. Children's Privacy

Our applications are not intended to knowingly collect personal information from children.

We do not knowingly collect personal information from children through our applications.

If you believe that a child has provided personal information through one of our applications, please contact us so that we can review the situation and take appropriate action.

9. Third-Party Websites and Services

Our applications may contain links to or integrate with third-party websites and services.

We do not control and are not responsible for the privacy practices, security, or content of third-party services.

We recommend reviewing the privacy policy of any third-party service before using it.

10. Data Retention and Deletion

Information stored locally by an application generally remains on your device until it is deleted by the application, removed by you, or the application is uninstalled, depending on the application's functionality.

Purchase-related information received from Google Play may be retained only for as long as reasonably necessary to verify purchases, maintain purchased entitlements, provide customer support, comply with legal obligations, or resolve disputes.

Where a particular application provides server-side data storage, that application may provide additional information regarding data retention and deletion.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes to our applications, services, applicable laws, or third-party services.

When changes are made, the "Last updated" date at the top of this page will be updated accordingly.

12. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our applications, please contact us at:

Email: luudungha@gmail.com

Summary: Our applications are designed to minimize the collection of personal information. Information may be processed locally on your device or by third-party services used by individual applications. Some applications may use Google AdMob for advertising and Google Play Billing for optional in-app purchases, including purchases that remove advertisements. Payment credentials are processed by Google Play and are not directly collected or stored by us.