Privacy Policy for SMS Alarm App
*Last Updated:** January 8, 2026
## 1. Introduction
This Privacy Policy describes how SMS Alert Monitor ("we," "our," or "the App") collects, uses, and protects your information when you use our Android application. We are committed to protecting your privacy and ensuring transparency about our data practices.
## 2. Information We Collect
### 2.1 SMS Messages
- **What we collect:** Content of SMS messages received on your device
- **Why we collect it:** To analyze message content and provide alert notifications based on your configured filtering rules
- **Legal basis:** Necessary for the core functionality of the app with your explicit consent
### 2.2 Device Information
- **What we collect:** Basic device information such as device model, operating system version
- **Why we collect it:** To ensure optimal app performance across different Android versions and device manufacturers (particularly OPPO and VIVO devices)
### 2.3 Usage Data
- **What we collect:** Not collect anything
## 3. Permissions Required
Our app requires the following permissions to function properly:
### 3.1 Sensitive Permissions
#### Background Activity Permission
- **Purpose:** Allows the app to run continuously in the background to maintain stable monitoring of important SMS messages and provide timely alerts
- **Risk if denied:** The app will not be able to remain active in the background, which will cause alert functionality to fail
#### SMS Reading Permission (android.permission.READ_SMS)
- **Purpose:** Read SMS message content to analyze and trigger alerts based on your filtering criteria
- **Risk if denied:** Core functionality of SMS monitoring and alerting will not work
#### SMS Reception Permission (android.permission.RECEIVE_SMS)
- **Purpose:** Monitor incoming SMS messages in real-time to read content and trigger appropriate alerts
- **Risk if denied:** App cannot detect new SMS messages, rendering alert functionality useless
#### Foreground Service Permission (android.permission.FOREGROUND_SERVICE)
- **Purpose:** Improve app survival time and maintain real-time SMS monitoring, especially on OPPO and VIVO devices with aggressive battery optimization
- **Risk if denied:** App may be terminated by the system, interrupting SMS monitoring
#### Notification Permission (android.permission.POST_NOTIFICATIONS)
- **Purpose:** Display notifications in the notification bar when receiving SMS messages or push notifications (required for Android 13 and above)
- **Risk if denied:** You will not receive visual notifications when SMS alerts are triggered
#### Notification Listener Service Permission (android.permission.BIND_NOTIFICATION_LISTENER_SERVICE)
- **Purpose:** Use system notifications in a low-power manner to keep the app alive in the background and read SMS notifications for content analysis and alert triggering
- **Risk if denied:** Reduced efficiency in background operation and SMS monitoring
### 3.2 Normal Permissions
#### Vibration Permission (android.permission.VIBRATE)
- **Purpose:** Trigger phone vibration when SMS alerts are activated to provide tactile feedback
- **Risk if denied:** No vibration alerts will be available
#### Audio Settings Permission (android.permission.MODIFY_AUDIO_SETTINGS)
- **Purpose:** Adjust phone volume settings to play audio alerts when receiving filtered SMS messages
- **Risk if denied:** Audio alerts may not function properly or be audible
## 4. How We Use Your Information
### 4.1 Primary Uses
- **SMS Content Analysis:** Process SMS content locally on your device to determine if alerts should be triggered based on your filtering rules
- **Alert Generation:** Create notifications, sounds, and vibrations when SMS messages match your alert criteria
- **Background Monitoring:** Maintain continuous monitoring of SMS messages to ensure timely alerts
### 4.2 Data Processing Location
- All SMS content processing occurs locally on your device
- No SMS content is transmitted to external servers
- Alert rules and configurations are stored locally on your device
## 5. Data Sharing and Disclosure
### 5.1 No Data Sharing
- We do not share your SMS content with any third parties
- We do not sell your personal information
- We do not transmit SMS messages to external servers
### 5.2 Limited Exceptions
We may disclose information only in the following circumstances:
- When required by law or legal process
- To protect our rights, property, or safety
- With your explicit consent
## 6. Data Security
### 6.1 Security Measures
- SMS content is processed and stored locally on your device using Android's secure storage mechanisms
- We implement encryption for any configuration data stored by the app
- Regular security updates are provided to address potential vulnerabilities
### 6.2 Device Security
- The security of your SMS data depends on your device's security settings
- We recommend using device lock screens and keeping your Android system updated
## 7. Data Retention
### 7.1 SMS Content
- SMS content is not permanently stored by our app
- Content is processed in real-time and discarded after analysis
- Only alert logs and statistics may be retained locally for app functionality
### 7.2 Configuration Data
- User settings and filtering rules are stored locally until you uninstall the app or manually reset the configuration
## 8. Your Rights and Controls
### 8.1 Permission Management
- You can revoke any permission through Android system settings at any time
- The app will notify you of the impact of revoking essential permissions
### 8.2 Data Control
- You can clear all app data through Android system settings
- You can uninstall the app at any time to remove all associated data
- You can modify filtering rules and alert settings within the app
## 9. Children's Privacy
This app is not intended for use by children under 13 years of age. We do not knowingly collect personal information from children under 13.
## 10. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by:
- Posting the new Privacy Policy within the app
- Updating the "Last Updated" date at the top of this policy
- Providing notice through the app notification system for significant changes
## 11. Contact Information
If you have any questions about this Privacy Policy or our privacy practices, please contact us at:
**Email:** gfso2000@gmail.com
## 12. Compliance
This Privacy Policy complies with:
- Google Play Store privacy requirements
- Android app privacy guidelines
- Applicable data protection regulations
## 13. Technical Details
### 13.1 Android Version Compatibility
- Minimum supported Android version: Android 6.0 (API level 23)
- Optimized for Android 13+ notification systems
- Special optimizations for OPPO and VIVO devices
### 13.2 Background Operation
- Uses foreground service to maintain reliable background operation
- Implements battery optimization exclusion requests for consistent performance
- Utilizes notification listener service for efficient SMS monitoring
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**By installing and using SMS Alert Monitor, you acknowledge that you have read, understood, and agree to be bound by this Privacy Policy.**