Privacy Policy

Last Updated: November 25, 2025

Introduction

Welcome to Web Content Change Monitor ("we," "our," or "the App"). We value your privacy and are committed to protecting your personal information. This Privacy Policy explains how we collect, use, store, and protect your information.

1. Information Collection

1.1 Information We Collect

We only collect the following information necessary for the app to function:

a) App Usage Data (Local Storage)

• Monitoring task configurations (URLs, check intervals, notification settings, etc.)
• Web content snapshots (for change detection)
• App settings and preferences

This data is stored entirely on your local device and is not uploaded to any servers.

b) Anonymous Analytics Data (Optional)

If you enable Firebase Analytics, we may collect:

• Crash reports (without personal information)
• Anonymous usage statistics (feature usage frequency)
• Device information (OS version, device model)

You can disable analytics at any time in settings.

1.2 Information We Do NOT Collect

• ❌ Personal identification information (name, email, phone, etc.)
• ❌ Location data
• ❌ Contacts
• ❌ Photos or media files
• ❌ Specific content of websites you monitor

2. Information Use

2.1 How We Use Information

Collected information is only used for:

• ✅ Providing web monitoring functionality
• ✅ Saving your monitoring configurations and history
• ✅ Sending change notifications
• ✅ Improving app performance and stability (anonymous data)

2.2 We Will NOT

• ❌ Sell your data
• ❌ Share your personal information with third parties
• ❌ Use your data for advertising
• ❌ Track your behavior across other apps or websites

3. Data Storage

3.1 Local Storage

All monitoring data, snapshots, and settings are stored on your device using SQLite database and local file storage:

• Storage location: App private directory
• Storage method: Encrypted database
• Access control: Only this app can access the data

3.2 Cloud Storage

4. Third-Party Services

4.1 Firebase Services (Optional)

If you enable them, we use the following Firebase services:

Firebase Crashlytics

• Purpose: Collect crash reports to improve app stability
• Data collected: Crash logs, device model, OS version
• Privacy policy: Firebase Privacy Policy

Firebase Analytics

• Purpose: Understand app usage patterns
• Data collected: Anonymous usage statistics
• Privacy policy: Firebase Privacy Policy

You can completely disable these services in settings.

4.2 Notification Services (User Configured)

If you configure external notification services, your notification data is sent directly to those services according to your configuration:

• WeChat Work: Sent via your configured Webhook
• QQ Email: Sent via SMTP to your email address

Important: Use of these services is entirely under your control. We do not store or access your credentials.

5. Permissions Explanation

This app requests the following Android permissions:

Permission	Purpose	Required
INTERNET	Access web content for monitoring	Yes
ACCESS_NETWORK_STATE	Check network connectivity	Yes
POST_NOTIFICATIONS	Send change notifications	Yes
RECEIVE_BOOT_COMPLETED	Resume monitoring after device restart	No
SCHEDULE_EXACT_ALARM	Schedule precise monitoring intervals	No
WAKE_LOCK	Keep device awake during monitoring	No
FOREGROUND_SERVICE	Run background monitoring service	No

6. Data Security

6.1 Security Measures

We take the following measures to protect your data:

• 🔒 Data stored in app private directory, inaccessible to other apps
• 🔒 No cloud synchronization or remote access
• 🔒 Regular security updates

6.2 Data Retention

• Monitoring configurations: Retained until you manually delete them
• Content snapshots: Automatically cleaned based on your settings
• App settings: Retained until app uninstallation

7. Your Rights

7.1 Data Control

You have complete control over your data:

• ✅ View all stored data at any time
• ✅ Delete monitoring tasks individually or in bulk
• ✅ Export your data
• ✅ Completely remove all data by uninstalling the app

7.2 Analytics Control

• ✅ Enable/disable Firebase Analytics at any time
• ✅ Enable/disable crash reporting at any time

8. Children's Privacy

This app is not directed to children under 13. We do not knowingly collect personal information from children. If you discover that a child has provided us with personal information, please contact us, and we will delete it immediately.

9. International Users

This app can be used worldwide. All data is stored locally on user devices, with no cross-border data transfer.

10. Privacy Policy Changes

We may update this Privacy Policy from time to time. Any changes will be communicated through:

• In-app notifications
• Updating the "Last Updated" date of this document

We recommend reviewing this policy periodically to stay informed of any changes.

11. Contact Us

If you have any questions or concerns about this Privacy Policy, please contact us:

• GitHub Issues: Report an Issue
• Email: 1840248334@qq.com

Data Processing Summary

Data Type	Collection	Storage Location	Sharing	Purpose
Monitoring Config	Yes	Local Device	No	App Functionality
Content Snapshots	Yes	Local Device	No	Change Detection
Analytics (Optional)	Optional	Firebase	Google (Anonymous)	Improvement
Personal Info	No	N/A	No	N/A

Version: 2.0.0
Effective Date: November 25, 2025