Privacy Policy

1. Introduction

Welcome to Popcorn English. This Privacy Policy explains how we collect, use, and protect your information when you use our language learning application. By using our Service, you agree to this Privacy Policy.

2. Information We Collect

Account and Profile Information

• Device identifier (to sync your progress across devices)
• Apple ID identifier (if you sign in with Apple)
• Optional profile information: name, email (if shared), avatar image

Learning Data

• Your learning progress for each word
• Episodes you've accessed and your progress
• Learning statistics and activity timestamps
• Personalization settings (native language, English level, learning goals)

Subscription and Purchase Information

• Subscription status and transaction IDs from Apple
• Purchase dates and expiration dates
• Access entitlements and user balance

Note: We do not store payment card information. All payments are processed through Apple's App Store.

Device Information

• Push notification tokens (to send you notifications)
• Device timezone (to schedule notifications appropriately)

AI Service Usage

• Which words you request AI explanations for
• Usage analytics
• Your feedback on AI explanations

3. How We Use Your Information

We use your information to:

• Provide and maintain the Service
• Personalize your learning experience
• Track your learning progress
• Send push notifications
• Improve the Service
• Verify transactions and prevent fraud

4. Data Storage and Security

Your data is stored on secure servers using industry-standard encryption (TLS/SSL). We retain your information while your account is active. If you delete your account, we will delete or anonymize your personal information in accordance with applicable laws, except where we are required to retain certain information for legal or business purposes.

While we implement security measures to protect your information, no method of transmission over the Internet is 100% secure.

5. Third-Party Services

Apple Services

• Sign in with Apple: Apple authenticates you and provides us with a unique identifier. We do not receive your email unless you explicitly share it.
• App Store: All purchases are processed through Apple. We only receive transaction verification data.
• Push Notifications: We use Apple's push notification service to send notifications.

Apple's use of your information is governed by Apple's Privacy Policy.

OpenRouter AI Service

We use OpenRouter to generate AI-powered word explanations. When you request an explanation, we send word information and your personalization settings (native language, English level, learning goal) to OpenRouter. We do not send your user ID or other personally identifiable information.

Data Sharing

We do not sell your personal information. We may share information only:

• With trusted service providers (hosting, database services) under strict confidentiality agreements
• If required by law or to protect our rights and safety
• In the event of a business transfer (merger, acquisition)
• With your explicit consent

6. Your Rights

You have the right to:

• Access your personal data
• Request correction of inaccurate data
• Request deletion of your account and data
• Opt out of push notifications (through device settings)
• Request a copy of your data in a portable format
• Object to certain types of data processing

To exercise these rights, contact us through the support channels in the application. We will respond within a reasonable timeframe.

Note: Some rights may be limited when we need to retain information for legal or business purposes.

7. Children's Privacy

Our Service is not intended for children under 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us immediately.

8. International Users

If you are located in the European Economic Area (EEA), United Kingdom, or Switzerland, you have additional rights under GDPR, including the right to lodge a complaint with a supervisory authority. Our legal basis for processing includes contractual necessity, legitimate interests, consent, and legal obligations.

If you are a California resident, you have additional rights under CCPA, including the right to know what information we collect and the right to delete your information. We do not sell your personal information.

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of material changes by posting the updated policy on this page and updating the "Last updated" date. Your continued use of the Service after changes constitutes acceptance of the updated policy.

10. Contact Us

If you have questions about this Privacy Policy or our data practices, please contact us through the support channels available in the application.