Privacy Policy for Amgi Sajeon
Last Updated: January 16, 2026
Introduction
Amgi Sajeon ("we," "our," or "the app") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and protect your information when you use our Korean dictionary application.
Information We Collect
Information Stored Locally on Your Device
The following data is stored locally on your device and is never transmitted to our servers:
- Dictionary search history: Words and phrases you've searched for
- Learning progress: Your spaced repetition study data, card reviews, and performance statistics
- Custom decks: Flashcard decks you create or import
- Saved words and bookmarks: Entries you save for later reference
- User preferences: Your app settings and customization choices, including:
- Card review settings and orientation
- Audio playback preferences
- Display preferences (Hanja emphasis, romanization, etc.)
- Theme and appearance settings
- Review session limits
This data remains on your device and is not accessible to us or any third parties.
Information We Collect Through Third-Party Services
Firebase Analytics
We use Google Firebase Analytics to understand how users interact with our app. This helps us improve the app experience. Firebase Analytics may collect:
- Device information: Device model, operating system version, language settings
- Usage data:
- Screens viewed and navigation patterns
- Features used (search, decks, learning modules, Hanja study, grammar rules)
- Button taps and interactions
- Search patterns and filter usage
- Review session statistics (number of cards reviewed, performance)
- App information: App version, install source, session duration
- General location: Country or region (derived from IP address, not precise location)
Firebase Analytics does not collect personally identifiable information such as names or email addresses.
Firebase Crashlytics
We use Firebase Crashlytics to identify and fix app crashes and technical issues. When the app crashes, Crashlytics collects:
- Crash reports: Technical information about what caused the crash
- Device state: Memory usage, battery level, network connectivity at the time of crash
- Stack traces: Technical debugging information
- Device identifiers: Installation UUID (anonymous identifier specific to your app installation)
Crash reports help us maintain app stability and fix bugs quickly.
In-App Purchases
When you make in-app purchases:
- Purchase transactions: Processed entirely through Apple's App Store
- Purchase verification: We verify your purchase status through Apple's StoreKit to enable premium features
- No payment information: We never receive or store your payment information (credit card, etc.)
Apple handles all payment processing according to their privacy policy.
How We Use Your Information
We use the collected information to:
- Provide and maintain app functionality
- Improve app performance and user experience
- Identify and fix technical issues and crashes
- Understand which features are most useful to users
- Analyze usage patterns to guide future development
- Enable in-app purchases and premium features
Data Retention
- Local data: Stored on your device until you delete the app or manually clear data
- Analytics data: Retained by Google Firebase according to their data retention policies (typically 14 months for event data)
- Crash reports: Retained for 90 days to allow for debugging and analysis
Data Sharing and Third Parties
We do not sell, rent, or share your personal information with third parties for their marketing purposes.
Third-party services we use:
- Google Firebase (Analytics and Crashlytics)
- Apple (In-App Purchases)
These services may collect and process data according to their own privacy policies.
Children's Privacy
Amgi Sajeon does not knowingly collect personal information from children under 13. The app is designed for general audiences learning and using Korean. If you believe we have inadvertently collected information from a child under 13, please contact us.
Your Rights and Choices
You have the following rights regarding your data:
- Access: All your learning data is stored locally on your device and accessible through the app
- Deletion: You can delete all app data by uninstalling the app or clearing app data in iOS Settings
- Opt-out of analytics: You cannot opt out of analytics within the app, but you can limit ad tracking in your iOS device settings (Settings > Privacy & Security > Tracking)
- Notifications: You can disable notifications in iOS Settings
Data Security
We implement appropriate security measures:
- Local storage: Data is stored securely on your device using iOS security features
- Encryption: All data transmitted to Firebase uses industry-standard encryption (HTTPS/TLS)
- No user accounts: We do not maintain user accounts or authentication systems, reducing data exposure
However, no method of electronic storage is 100% secure. While we strive to protect your information, we cannot guarantee absolute security.
Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by:
- Updating the "Last Updated" date at the top of this policy
- Providing an in-app notification for significant changes
We encourage you to review this Privacy Policy periodically.
International Users
Amgi Sajeon is available worldwide. If you use the app outside of your country of residence, please note that your information may be transferred to, stored, and processed in countries where Firebase services operate, including the United States.
Contact Us
If you have questions or concerns about this Privacy Policy or our data practices, please contact us at:
Email: amgisajeon@gmail.com
Technical Details (For Transparency)
Data Collected by Firebase Analytics
Specific events we track include:
- Screen views (search, decks, learning modules, entry details, etc.)
- Entry interactions (word or Hanja tapped, bookmarked, copied)
- Feature usage (filters, toggles, buttons)
- Review sessions (cards reviewed, performance statistics)
- Purchase flows (initiation, completion status)
- Navigation patterns between screens
- Error occurrences
Data NOT Collected
We do NOT collect:
- Personal identification information (names, email addresses, phone numbers)
- Precise location data
- Contact lists or address book data
- Photos or media files
- Audio or video recordings
- User-generated content (notes, custom definitions)
- Financial information or payment details
Third-Party Links
The app may contain links to external websites or resources (such as grammar references or related content). We are not responsible for the privacy practices of these external sites. We encourage you to read the privacy policies of any third-party sites you visit.
California Privacy Rights (CCPA)
If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA):
- Right to Know: You have the right to know what personal information we collect
- Right to Delete: You can request deletion of your personal information (accomplished by uninstalling the app)
- Right to Opt-Out: You can opt out of the "sale" of personal information (we do not sell personal information)
To exercise these rights, contact us at the email address provided above.
European Privacy Rights (GDPR)
If you are in the European Economic Area (EEA), you have rights under the General Data Protection Regulation (GDPR):
- Right to Access: Access your personal data
- Right to Rectification: Correct inaccurate data
- Right to Erasure: Request deletion of your data
- Right to Restrict Processing: Limit how we use your data
- Right to Data Portability: Receive your data in a portable format
- Right to Object: Object to processing of your data
To exercise these rights, contact us at the email address provided above.
This privacy policy was generated to comply with applicable privacy laws including GDPR, CCPA, and COPPA. It reflects our current data practices as of the last updated date.
