Privacy Policy for 喝热水 - Learn Chinese Habits

Introduction

Welcome to "喝热水 - Learn Chinese Habits" (the "App"). We are committed to protecting your privacy and being transparent about how we collect, use, and protect your personal information. This Privacy Policy explains our data practices for the mobile application available on the Apple App Store.

Information We Collect

1. Account Information

When you create an account or sign in, we may collect:

• Authentication Data: Email address (for email OTP authentication), Apple ID information (for Apple Sign-In), or Google account information (for Google Sign-In)
• User Identifier: A unique user ID generated by our authentication system
• Account Creation Date: When you first created your account

2. Habit Tracking Data

To provide the core functionality of habit learning and tracking, we collect:

• Completed Habits: Which of the 30 Chinese cultural habits you have completed
• Completion Dates: When you completed each habit
• Progress Statistics: Your overall progress, streaks, and completion percentages
• Achievement Data: Badges and achievements you have unlocked
• Cooldown Information: Timing data for when habits become available again (stored locally)

3. App Usage Data

To improve your experience and app functionality, we collect:

• Last Active Date: When you last used the app
• Engagement Metrics: How often you open the app and interact with features
• Feature Usage: Which parts of the app you use most frequently
• Session Data: App launch times and session duration (stored locally)

4. Social Sharing Data

When you use sharing features, we may collect:

• Share Statistics: How many times habits have been shared (aggregated data only)
• Shared Content: Images and text you choose to share through the app's sharing functionality

5. Technical Information

We automatically collect certain technical information:

• Device Information: Device type, operating system version, app version
• Performance Data: App crashes, errors, and performance metrics
• Network Information: Connection status for sync functionality

How We Use Your Information

1. Core App Functionality

• Tracking your progress through the 30-day Chinese habits challenge
• Calculating cooldown periods between habit completions
• Generating personalized achievements and rewards
• Synchronizing your progress across devices (when signed in)

2. Personalization

• Providing personalized welcome messages and motivational content
• Customizing the app experience based on your progress and preferences
• Generating contextual feedback and encouragement

3. App Improvement

• Analyzing usage patterns to improve app features and performance
• Identifying and fixing technical issues and bugs
• Developing new features based on user engagement data

4. Communication

• Sending important app updates and notifications (with your permission)
• Providing customer support when you contact us
• Sending authentication codes for email OTP login

Data Storage and Security

1. Local Storage

Most of your data is stored locally on your device using secure storage mechanisms:

• Habit Progress: Stored locally with automatic backup and recovery
• Cooldown Data: Managed locally with data integrity validation
• User Preferences: Stored in secure local storage

2. Cloud Storage

Some data is stored in our secure cloud database (Supabase):

• Account Information: Encrypted and stored securely
• Habit Completion Records: Synchronized across your devices
• Achievement Data: Backed up for account recovery

3. Security Measures

We implement industry-standard security measures:

• Encryption: All data transmission is encrypted using HTTPS/TLS
• Authentication: Secure OAuth 2.0 authentication with Apple and Google
• Access Controls: Strict access controls and user authentication requirements
• Data Validation: Comprehensive data integrity checks and validation

Data Sharing and Disclosure

We do not sell, trade, or rent your personal information to third parties. We may share your information only in the following limited circumstances:

1. Service Providers

We may share data with trusted service providers who help us operate the app:

• Supabase: Our database and authentication provider (privacy-compliant)
• Apple/Google: For authentication services (following their privacy policies)

2. Legal Requirements

We may disclose information if required by law or to:

• Comply with legal processes or government requests
• Protect our rights, property, or safety
• Prevent fraud or security threats

3. Business Transfers

In the event of a merger, acquisition, or sale of assets, user information may be transferred as part of the transaction, subject to the same privacy protections.

Your Rights and Choices

1. Access and Control

You have the right to:

• Access: View all personal data we have collected about you
• Correction: Update or correct inaccurate personal information
• Deletion: Request deletion of your personal data and account
• Portability: Export your data in a machine-readable format

2. Communication Preferences

You can control:

• Push Notifications: Enable or disable app notifications in your device settings
• Email Communications: Opt out of non-essential emails
• Marketing: We do not send marketing emails without explicit consent

3. Account Management

You can:

• Delete Account: Permanently delete your account and associated data
• Data Export: Request a copy of your personal data
• Privacy Settings: Adjust privacy preferences within the app

Children's Privacy

Our app is designed for users aged 4+ and is suitable for all ages. We do not knowingly collect personal information from children under 13 without parental consent. If we become aware that we have collected personal information from a child under 13, we will take steps to delete such information promptly.

International Data Transfers

Your information may be transferred to and processed in countries other than your own. We ensure that such transfers comply with applicable data protection laws and implement appropriate safeguards to protect your personal information.

Data Retention

We retain your personal information for as long as necessary to provide our services and fulfill the purposes outlined in this Privacy Policy:

• Account Data: Retained until you delete your account
• Habit Progress: Retained for the duration of your account
• Usage Analytics: Aggregated and anonymized after 2 years
• Technical Logs: Deleted after 90 days unless needed for security purposes

Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or applicable laws. We will notify you of any material changes by:

• Posting the updated policy in the app
• Sending a notification through the app
• Updating the "Last Updated" date at the top of this policy

Your continued use of the app after any changes indicates your acceptance of the updated Privacy Policy.

Compliance Information

This Privacy Policy complies with:

• Apple App Store Guidelines: Including App Store Review Guidelines for privacy
• GDPR: European Union General Data Protection Regulation
• CCPA: California Consumer Privacy Act
• COPPA: Children's Online Privacy Protection Act

Language

This Privacy Policy is provided in English. In case of any discrepancy between the English version and any translated version, the English version shall prevail.