# Privacy Policy

**Effective Date:** September 2025

## 1. Introduction

Welcome to Room Device Scanner. We understand the importance of privacy to you, and therefore have created this Privacy Policy to detail how we collect, use, store, and protect your personal information.

## 2. Information Collection

### 2.1 Device Permissions
Our app may require the following permissions to provide core functionality:

- **Camera Permission**: For room reflection testing, observing reflections on shiny surfaces
- **Microphone Permission**: For audio spectrum analysis, visualizing unusual audio frequencies
- **WiFi Permission**: For WiFi device scanning, finding devices connected to your network
- **Network Permission**: For app updates and feature enhancements
- **Location Permission**: For location-based services (optional)

### 2.2 Types of Information Collected
- **Device Information**: Device model, operating system version, app version
- **WiFi Network Information**: Network names, list of connected devices (for scanning purposes only)
- **Audio Data**: Real-time audio spectrum analysis (no audio content saved)
- **Magnetic Field Data**: Magnetometer readings (for detecting electronic devices)
- **Usage Data**: Scan history, feature usage frequency (stored locally)
- **Location Information**: Only collected when you authorize (optional)

### 2.3 Information We Do Not Collect
- Personal identification information (name, phone, email, etc.)
- Contacts, messages, call records
- Private data from other apps
- Audio recording content (only real-time analysis)
- WiFi passwords or sensitive network information

## 3. Information Usage

### 3.1 Purpose of Use
The information we collect is used only for:
- Providing room device scanning functionality (WiFi device detection)
- Conducting magnetic field monitoring and analysis
- Performing audio spectrum analysis and visualization
- Conducting room reflection testing
- Saving and reviewing scan history records
- Improving app performance and user experience
- Providing technical support
- Complying with legal and regulatory requirements

### 3.2 Data Storage
- Scan history, WiFi device lists, and other data are stored only locally on your device
- Audio data is only analyzed in real-time, no recording content is saved
- Magnetic field data is only used for real-time monitoring, not permanently stored
- Data is not uploaded to our servers
- Data is not shared with third parties

## 4. Data Security

### 4.1 Security Measures
- Industry-standard encryption technology to protect data
- Regular security measure updates
- Restricted employee access permissions

### 4.2 Data Retention
- Local data is deleted when you uninstall the app
- We do not permanently retain your personal information

## 5. Third-Party Services

### 5.1 RevenueCat
We use RevenueCat to handle in-app purchases:
- Only collects necessary transaction information
- Follows RevenueCat's privacy policy
- Does not access your payment details

### 5.2 Other Third Parties
- We do not sell your personal information to third parties
- We only cooperate with trusted third parties when necessary

## 6. Children's Privacy

Our app is not designed for children under 13 years old and does not knowingly collect personal information from children.

## 7. Your Rights

### 7.1 Access and Control
- You can view app settings at any time
- You can delete locally stored scan history and WiFi device lists
- You can revoke camera, microphone, WiFi, and location permission authorizations
- You can stop audio spectrum analysis at any time

### 7.2 Data Deletion
- Uninstalling the app will delete all local data
- If you need to delete specific data, please contact us

## 8. Privacy Policy Updates

We may update this Privacy Policy from time to time. Significant changes will be notified through in-app notifications or update logs.

## 9. Contact Us

If you have any questions or suggestions about this Privacy Policy, please contact us through the following methods:

- Email: lpjustdoit@163.com
- In-app feedback function

## 10. Terms of Use

This app uses the standard Apple Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## 11. Legal Applicability

This Privacy Policy is governed by the laws of the People's Republic of China. In case of disputes, they should be resolved through friendly consultation.

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**Last Updated:** September 2025

**Version:** 1.0