Privacy Policy

This privacy policy governs your use of the mobile application Lumina Wallpapers: 4K & Live ("Application", "we", "us", or "our"), available on the Google Play Store, developed and published by PocketESP.

1. Information We Process & Device Capabilities

A. Device Accelerometer & Sensor Data (Shake-to-Change):

When the optional "Shake to Change Wallpaper" feature is enabled, the Application accesses your device's hardware accelerometer sensor to detect intentional physical shake gestures. Sensor calculations are processed in-memory in real-time on your local hardware. Sensor telemetry is never stored, recorded, or transmitted to any server.

B. Scoped Media Storage (Saving Wallpapers):

When you choose to save a wallpaper, Lumina Wallpapers uses Android's modern, standard MediaStore API to write image files directly to your device's public Pictures/LuminaWallpapers directory. The Application does not inspect, read, or upload any personal photos, videos, or documents from your device.

C. Local Preferences & Cached Assets:

User preferences (dark/light theme, shake sensitivity thresholds, favorite wallpapers, and auto-changer frequency) are stored securely on the local device sandbox storage via Android SharedPreferences.

D. Foreground Service (Interactive Heart Lock Screen):

The Application includes an optional, user-initiated interactive Magic Heart Lock Screen overlay. When activated, a foreground service (specialUse) keeps the touch-responsive visual particle engine active while the screen is locked, accompanied by an ongoing notification that allows immediate termination at any time.

2. Third-Party Services & Advertising

To support ongoing development and server maintenance, the Application integrates Google AdMob to deliver banner ads and user-initiated rewarded video ads (such as refilling interactive fireworks cracker particles):

Google AdMob:

• Identifiers Google Advertising ID (GAID / AAID): Used by Google AdMob to serve non-personalized or personalized ads in accordance with user device settings and Google Play Policy.
• Diagnostics Crash Logs & Performance Metrics: Technical telemetry collected by the Google Mobile Ads SDK for ad delivery diagnostics and fraud prevention.
• Network Coarse IP Address: Used strictly by ad networks for regional ad targeting and click fraud detection.

For detailed information on how Google processes ad data, please review the Google Advertising Privacy Policy and Google Privacy & Terms.

3. Data Security & Encryption

All network communications between the Application and third-party services (such as wallpaper CDN delivery and Google AdMob ad networks) are strictly transmitted over industry-standard HTTPS / TLS 1.3 encryption to safeguard data in transit.

4. Data Retention & Deletion Rights

In accordance with Google Play's User Data and Account Deletion policies:

• No Account Deletion Required: Because Lumina Wallpapers operates without user accounts or cloud user profiles, no personal account deletion request is necessary.
• Instant Local Deletion: You can purge all cached wallpapers, favorites, and settings instantly at any time by selecting "Clear Storage" in your Android system app settings or by uninstalling the Application.
• Ad ID Reset: You can reset or delete your Android Advertising ID at any time via Settings > Google > Ads > Reset/Delete advertising ID.

5. Children's Privacy (COPPA & Families Policy)

Lumina Wallpapers is designed for general audiences and does not knowingly collect, solicit, or maintain personal information from children under the age of 13. All features are compliant with COPPA and Google Play Developer Program policies.

6. Changes to This Policy

We may periodically update this Privacy Policy to reflect application updates or regulatory modifications. Updates will be reflected by the "Last Updated" timestamp at the top of this document.