Infinite stone skipping

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# Privacy Policy for Infinite stone skipping

**Last Updated:** [2025.08.10]

## Introduction

This Privacy Policy describes how Infinite stone skipping ("we," "our," or "us") collects, uses, and protects your information when you use our mobile application (the "App"). We are committed to protecting your privacy and ensuring the security of your personal information.

## Information We Collect

### Motion and Sensor Data
- **Accelerometer Data**: We collect motion sensor data to detect your arm swinging movements for training purposes
- **Gyroscope Data**: We use gyroscope data to analyze the trajectory and motion patterns during training sessions
- **Device Orientation**: We collect device orientation data to enhance the training experience

### Usage Data
- **Training Statistics**: We store your training session data, including swing counts, energy consumption, and performance metrics
- **App Usage**: We may collect information about how you use the App, including features accessed and time spent

### Device Information
- **Device Model**: We collect basic device information for compatibility and performance optimization
- **Operating System Version**: We collect iOS version information to ensure proper functionality

## How We Use Your Information

We use the collected information for the following purposes:

### Core Functionality
- To provide the gravity slingshot training simulation
- To track and display your training progress and statistics
- To analyze your swing motion and provide feedback

### App Improvement
- To improve the App's performance and user experience
- To develop new features and training modes
- To fix bugs and technical issues

### Analytics
- To understand how users interact with the App
- To improve our training algorithms
- To optimize the user interface

## Data Storage and Security

### Local Storage
- All training data and statistics are stored locally on your device
- We do not transmit your personal training data to external servers
- Your motion sensor data is processed in real-time and not permanently stored

### Security Measures
- We implement appropriate technical and organizational measures to protect your data
- All data processing occurs on your device to maintain privacy
- We regularly update our security practices to protect against unauthorized access

## Data Sharing and Disclosure

### No Third-Party Sharing
- We do not sell, trade, or share your personal information with third parties
- We do not use third-party analytics services that collect personal data
- Your training data remains private and is not shared with other users

### Legal Requirements
We may disclose your information only if required by law or to:
- Comply with legal processes or government requests
- Protect our rights, property, or safety
- Prevent fraud or security issues

## In-App Purchases

### Payment Information
- All payment processing is handled by Apple's App Store
- We do not collect or store your payment information
- Purchase records are managed by Apple according to their privacy policy

### Premium Features
- Premium features unlock additional training modes and statistics
- No additional personal data is collected for premium features
- All data remains stored locally on your device

## Children's Privacy

Our App is suitable for users aged 18 and above. We do not knowingly collect personal information from children under 17. If you are a parent or guardian and believe your child has provided us with personal information, please contact us.

## Your Rights and Choices

### Data Control
- You can delete all training data by uninstalling the App
- You can reset your statistics through the App settings
- You have full control over your motion sensor permissions

### Permissions
- You can revoke motion sensor permissions through iOS Settings
- The App will not function properly without motion sensor access
- No other sensitive permissions are required

## 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 in the App
- Updating the "Last Updated" date
- Providing notice through the App Store if required

## Contact Information

If you have any questions about this Privacy Policy or our privacy practices, please contact us:

**Email:** [28923840@163.com]
 

## Compliance

This Privacy Policy complies with:
- Apple App Store Review Guidelines
- General Data Protection Regulation (GDPR) where applicable
- California Consumer Privacy Act (CCPA) where applicable
- Other applicable privacy laws and regulations

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**Effective Date:** [2025.08.10]
**Version: 1.1.2

By using Infinite stone skipping, you acknowledge that you have read and understood this Privacy Policy and agree to the collection and use of information in accordance with this policy.

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