Privacy Policy

Privacy Policy

This Privacy Policy applies specifically to the One Line Draw mobile game developed and published by Đặng Đình Dương (Alex Dương). It explains the difference between local offline gameplay and optional online advertising services.

1. No accounts and offline gameplay

The game does not require account creation, login or the submission of your name, phone number or email to play. Its core puzzle functions are designed for offline use. No game account or cloud-sync service operated by the developer is offered.

2. Information kept on your device

Depending on the app version and features in use, game progress, level completion, preferences, language and sound settings may be stored locally on your device. This gameplay information is not intended to be uploaded to developer-operated servers. Device-level backup features controlled by Android or your device manufacturer may handle local app data separately.

3. Advertising and third-party data

When an internet connection is available and ads are enabled, the game may use Google AdMob (Google Mobile Ads SDK) to display or measure advertisements. Depending on the SDK configuration, region and user consent, Google and its advertising partners may collect or process IP address, device/app identifiers (including advertising ID where available), approximate location derived from IP, ad interactions, application performance and diagnostic information. This processing is not required for core offline puzzles.

Google processes advertising-related information under its own policies. You can review its privacy practices and ad controls here:

Google Privacy Policy → · My Ad Center →

4. Support communications

If you voluntarily email [email protected] about a bug or support question, we use the details you send only to respond and troubleshoot. Please avoid sending passwords or sensitive personal information. Support email is separate from in-game data.

5. Data security, retention and deletion

Local app data remains on the device until cleared, uninstalled or otherwise managed by the operating system, subject to device backup settings. The developer does not operate a personal gameplay-account database. Google handles advertising data security and retention under its own policies; ad traffic is protected according to the SDK/provider configuration. To remove local progress, follow the data deletion instructions linked below.

6. Children and families

If you are a parent or guardian and have questions about advertising or data handling, please contact us. Advertising treatment may differ according to the age group declared in the store and applicable requirements.

7. Updates and contact

We may revise this policy when app features or third-party services change. The effective date shown above will be updated. Questions or privacy requests may be sent to:

Đặng Đình Dương (Alex Dương)
[email protected]
https://dangdinhduong.com/