1. General Provisions
This Privacy Policy describes how the Grammar Trainer application (hereinafter — "Application", "we", "us") collects, uses, and protects your personal information.
2. Information We Collect
2.1 Information You Provide
- Language Settings: Your native language (Russian or Ukrainian)
- Language Proficiency Level: Your selected CEFR level (A1-C2)
- Application Settings: Appearance preferences (light/dark theme)
2.2 Automatically Collected Information
- Learning Progress Data: Exercise results, lesson completion statistics
- Repetition Data: Information about the spaced repetition system (FSRS)
- Score Counters: Your points, correct answer streaks, completed lesson count
- Technical Information: iOS version, device model (for compatibility)
3. How We Use Your Information
3.1 Primary Use Purposes
- Learning Personalization: Adapting content to your level and language
- Progress Tracking: Analyzing your results to improve learning
- Repetition System: Optimizing material review timing
- Application Improvement: Analyzing usage to develop functionality
3.2 Local Processing
All data processing occurs locally on your device. We do not transmit your data to external servers.
4. Data Storage
4.1 Local Storage
All your data is stored exclusively on your device in:
- UserDefaults: Settings, repetition progress, score counters
- Core Data: Lesson statistics and historical data
4.2 Security
- Data is protected by standard iOS security mechanisms
- Data access is only possible through our application
- Data backups follow your device's iCloud settings
5. Data Sharing with Third Parties
We do not share your personal information with third parties, because:
- All data is processed locally on your device
- We do not use external services for data analysis or storage
- The application works completely offline
6. Your Rights
6.1 Right to Access
You can view all your data through application features:
- Learning statistics in the "Statistics" section
- Settings in the "Settings" section
6.2 Right to Deletion
You can delete all your data at any time:
- Use the "Reset Data" function in settings
- This will completely delete all progress and return the application to its initial state
6.3 Right to Portability
Since data is stored locally, you can:
- Create backups through iCloud
- Export data through iTunes (if available)
7. Children's Data
The application does not collect special information about children under 13 years of age. If you are a parent and believe your child has provided us with personal information, please contact us.
8. Changes to Privacy Policy
We may update this privacy policy. We will notify you of significant changes through:
- Application updates in the App Store
- In-app notifications (if applicable)
9. International Data Transfer
Since all data is processed locally on your device, international data transfer does not occur.
10. Data Retention Period
Your data is stored on your device until:
- You delete the application
- You use the "Reset Data" function
- You delete data through iOS settings
11. Data Security
We take reasonable measures to protect your information:
- Using standard iOS security mechanisms
- Local storage of all data
- No external connections for data transmission
12. Consent
By using the Grammar Trainer application, you agree to the terms of this Privacy Policy.
Last updated: August 2, 2025