Privacy Policy for Voice Screen Lock
Package ID: com.smart.voicescreenlock.security
Effective Date: August 11, 2026

1. Introduction
Voice Screen Lock ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how your personal information is collected, used, and safeguarded when using our mobile application.

2. Information We Collect
We prioritize strict data minimization and user privacy. The Application processes the following types of data:
- Audio & Voice Data: Your voice input is processed in real-time to authenticate your voice phrase. This processing occurs 100% locally on your device. We do not record, store, transmit, or upload your voice data to any remote servers.
- App Usage Data (App Lock): For the App Lock feature, the application checks which apps are launched in real-time. This processing happens strictly on your device to trigger app locks and is never collected or shared.
- Biometric Data: If enabled, the app uses your device's Android biometric system (e.g., fingerprint). We do not collect or access raw biometric data; we only receive an encrypted authentication pass/fail signal from the Android OS.
- Device Specifications: Non-identifiable technical details (device model, Android OS version) may be processed for device compatibility and app stability.

3. How We Use Your Information
- Voice Authentication: To operate core hands-free voice unlocking functionality.
- App Lock Protection: To provide instant security overlays for sensitive installed applications.
- Performance Stability: To ensure reliable service operation and bug fixes.

4. Android Permissions Required
To provide security functionality, the Application requests the following permissions:
- Record Audio (MICROPHONE): Required to capture spoken commands for voice unlocking.
- System Alert Window (OVERLAY): Required to display the security lock screen over other apps.
- Package Usage Stats: Required by App Lock to detect when a locked app is launched.
- Biometric / Fingerprint: Required for optional biometric authentication.
- Post Notifications: Required to keep the Android foreground protection service active.
- Read Phone State: Required to temporarily pause lock screens during incoming phone calls.

5. Advertising & Third-Party Services
We integrate Google AdMob to display advertisements. Third-party ad SDKs may collect non-personal device identifiers to serve relevant ads according to Google AdMob policies: https://policies.google.com/privacy

6. Data Storage & Local Encryption
All sensitive credentials—including your local voice phrase model, backup PIN, pattern lock data, and app lock choices—are encrypted and stored locally on your device storage. We have zero access to your password data.

7. Children's Privacy
Our service does not address individuals under the age of 13. We do not knowingly collect personal information from children.