Privacy Policy

1. Information We Collect

1.1 Information You Provide

• Account Information: Email, name, password, profile photo, native language
• Payment Information: Processed securely via Stripe (we don't store card details)
• Learning Data: Lesson progress, flashcard reviews, quiz scores, time spent
• Communications: Messages sent to support or tutors

1.2 Automatically Collected Information

• Usage Data: Pages visited, features used, session duration
• Device Information: IP address, browser type, operating system
• Cookies: See our Cookie Policy below

2. How We Use Your Information

We use collected information to:

• Provide and improve the Service
• Personalize your learning experience
• Calculate spaced repetition schedules
• Process payments and prevent fraud
• Send important updates and educational tips
• Analyze usage patterns to improve features
• Comply with legal obligations

3. AI and Machine Learning

Our AI chatbot (Scienti) processes your messages to provide educational assistance. We use:

• OpenAI GPT-4: For generating responses (subject to OpenAI's privacy policy)
• Google Gemini: Fallback AI provider (subject to Google's privacy policy)

Chat messages may be stored to improve AI responses. You can request deletion anytime.

4. Information Sharing

We share your information only in these cases:

• With Tutors: Name and learning goals when booking sessions
• Service Providers: Stripe (payments), OpenAI (AI), Firebase (hosting)
• Legal Requirements: When required by law or to protect rights
• Business Transfers: In case of merger, acquisition, or sale

We never sell your personal data to third parties.

5. Data Security

We implement industry-standard security measures:

• HTTPS encryption for all data transmission
• Password hashing with bcrypt
• Regular security audits and penetration testing
• Limited employee access to personal data

However, no method is 100% secure. Use strong passwords and enable two-factor authentication.

6. Your Rights (GDPR & CCPA)

You have the right to:

• Access: Request a copy of your data
• Correction: Update inaccurate information
• Deletion: Request account and data deletion
• Portability: Export your learning data
• Opt-Out: Unsubscribe from marketing emails
• Restrict Processing: Limit how we use your data

To exercise these rights, email privacy@scientifier.com

7. Cookies and Tracking

We use cookies for:

• Essential: Login sessions, security (required)
• Analytics: Google Analytics to understand usage (optional)
• Preferences: Dark mode, language settings (optional)

You can disable non-essential cookies in your browser settings.

8. Children's Privacy

Our Service is not intended for children under 13. We do not knowingly collect data from children. If you believe a child has provided information, contact us immediately.

9. International Data Transfers

Your data may be processed in the United States or other countries. We ensure adequate protections through:

• Standard Contractual Clauses (SCCs)
• GDPR-compliant data processing agreements
• Privacy Shield principles (where applicable)

10. Data Retention

We retain your data for:

• Active accounts: Duration of your subscription
• Deleted accounts: 30 days (for recovery), then permanently deleted
• Legal obligations: Up to 7 years for financial records

11. Changes to This Policy

We may update this Privacy Policy. Changes will be posted here with a new "Last Updated" date. Material changes will be notified via email.

12. Contact Us

For privacy questions or requests:
📧 privacy@scientifier.com
📍 Data Protection Officer, Scientifier Inc., 123 Learning Lane, San Francisco, CA 94102