Privacy Policy

1. Data Controller (Verantwortlicher)

Name: Ömer Gülen
Address: Marchlewskistr. 75, 10243, Berlin
Email: omrglen@gmail.com
Phone: +4915751239787

2. Overview

This privacy policy explains how we collect, use, and protect your personal data when you use the German Citizenship Study App. We are committed to protecting your privacy and complying with the General Data Protection Regulation (GDPR) and German data protection laws.

3. Data We Collect

3.1 Personal Data

• Email Address: When you sign in with Google
• User ID: Unique identifier from Google authentication
• Study Progress: Your practice sessions and test results
• Settings: Your preferred German state and study preferences

3.2 Technical Data

• IP Address: For security and analytics
• Browser Information: For compatibility and optimization
• Usage Analytics: How you interact with the app (anonymized)

3.3 Data We Do NOT Collect

• Personal Identifiers: Name, address, phone number
• Sensitive Data: Health, political, or religious information
• Payment Information: No financial data is processed
• Location Data: No GPS or location tracking

4. How We Use Your Data

4.1 Primary Purposes

• Study Progress Tracking: Save your practice sessions and test results
• Cross-Device Sync: Access your progress on any device
• Personalization: Show relevant questions for your selected state
• App Functionality: Provide study features and progress analytics

4.2 Legal Basis (Rechtsgrundlage)

• Consent: You explicitly agree to data processing
• Legitimate Interest: Improving app functionality and user experience
• Contract Performance: Providing the study service you requested

5. Your Rights (Ihre Rechte)

5.1 Access Rights

• Right to Information: Know what data we have about you
• Right to Access: Get a copy of your personal data
• Right to Rectification: Correct inaccurate data
• Right to Erasure: Delete your personal data
• Right to Portability: Transfer your data to another service

5.2 How to Exercise Your Rights

Email: Contact us at omrglen@gmail.com
Response Time: We will respond within 30 days (GDPR requirement)
Verification: We may need to verify your identity
Personal Project: This is a personal project, not a commercial service
No Guarantee: We do not guarantee response times beyond legal requirements

6. Data Storage and Security

6.1 Data Storage

• Local Storage: Your progress is saved locally on your device
• Cloud Storage: Firebase/Firestore for cross-device synchronization
• Data Retention: Your data is kept as long as you use the app

6.2 Security Measures

• Encryption: All data is encrypted in transit and at rest
• Access Control: Only you can access your personal data
• Regular Backups: Your data is securely backed up
• Security Monitoring: Continuous monitoring for security threats

7. Third-Party Services

7.1 Google Authentication

Purpose: Secure sign-in and user identification
Data Shared: Email address and user ID only
Google's Privacy Policy: https://policies.google.com/privacy

7.2 Firebase/Firestore

Purpose: Cloud data storage and synchronization
Data Shared: Your study progress and settings
Google's Privacy Policy: https://policies.google.com/privacy

8. Contact Information

8.1 Data Protection Officer

Email: omrglen@gmail.com
Address: Marchlewskistr. 75, 10243, Berlin
Phone: +4915751239787

8.2 General Inquiries

Email: omrglen@gmail.com
Website: german-citizenship-study.com

9. Supervisory Authority

Name: Berliner Beauftragte für Datenschutz und Informationsfreiheit
Website: https://www.datenschutz-berlin.de/
Address: Friedrichstr. 219, 10969 Berlin, Germany