Privacy Policy
趣味拼图 is a sliding puzzle game. Photos selected through Android Photo Picker are processed locally. The app uses Firebase Analytics, Google Mobile Ads, and Google User Messaging Platform.
Photos and Device Media
The app uses the Android system Photo Picker so you can choose one image for a puzzle. It does not request broad album or gallery scanning permission and does not scan your albums. Selected photos are processed locally on your device to generate puzzle tiles. They are not uploaded to an app-owned server or sent as analytics event parameters.
Accounts and Local Storage
The app does not require or provide an account and does not operate an app-owned backend server for gameplay data, photo storage, analytics, or account records.
Settings, daily challenge records, puzzle progress, hint-time balance, and related reward counters are stored in private app storage or memory to provide app functionality.
Analytics, Ads, and Consent
The app uses Firebase Analytics to understand app usage and improve the game, Google Mobile Ads SDK for user-initiated rewarded ads, and Google User Messaging Platform (UMP) for consent and privacy choices where available.
Firebase Analytics records app activity categories including game and daily-challenge starts, puzzle completions, hint and rewarded-ad interactions, and in-app review eligibility, request, launch, and failure states. These events describe interactions with game features; the app does not use them to create an app-owned personal profile and does not include selected photos in them. The maintained technical event-name catalog is published from analytics-events.md.
Depending on SDK behavior, device configuration, consent, and region, these Google SDKs may collect or process app activity, device or other identifiers (including advertising identifiers where available), device information, IP address, and app information and performance data such as diagnostics. Purposes may include analytics, advertising or marketing, fraud prevention/security/compliance, and app functionality.
Third-Party Processing and Sharing
Third-party Google SDKs and services process data under Google's terms and privacy disclosures and may collect or share data as described there. The developer does not receive selected photos or local gameplay records through an app-owned backend. Google SDK data may be transmitted to and processed by Google according to Google's SDK documentation, retention controls, consent choices, and policies.
The app's Settings screen provides Privacy Options exposed by UMP where required and available. Consent choices can affect eligible ad or SDK processing, but some processing may remain necessary for security, fraud prevention, compliance, or app functionality.
Deletion and Contact
You can delete local app data by clearing the app's storage or uninstalling the app, subject to Android backup and device behavior. Android Photo Picker access is controlled by Android. Because the app has no user account or app-owned backend record, there is no developer-hosted account deletion flow.
For privacy questions or requests concerning developer-controlled data, contact lihywh@gmail.com. Requests concerning data processed by Google may also need to use the controls or request paths provided in Google's privacy policy.