Privacy Policy

1. Information We Collect

AntiRusty collects only the information necessary to provide you with the service:

• Email address and account credentials
• Vocabulary learning progress, FSRS review history, and output session results
• Device type and OS version (for crash reporting only)
• In-app purchase receipts validated directly with Apple/Google

We do not collect location data, contacts, camera access, or any data unrelated to language learning.

2. How We Use Your Information

Your data is used exclusively to:

• Schedule FSRS reviews and track your output-level progression
• Generate AI-powered context variants for your vocabulary via DeepSeek
• Process and validate your in-app subscription
• Improve app performance and fix bugs

We do not sell, rent, or share your personal data with third parties for advertising.

3. Data Storage & Security

Your data is stored on servers hosted on DigitalOcean, behind Cloudflare. All connections are encrypted via TLS. We use Redis for short-lived session tokens only — not for long-term data storage.

4. Third-Party Services

• DeepSeek — AI text generation (context variants, articles). Your vocabulary words are sent to generate context examples.
• Apple / Google — In-app purchase receipt validation.
• Cloudflare — CDN and DDoS protection. No personal data is processed beyond IP routing.

5. Your Rights

You can request deletion of your account and all associated data at any time through the Delete Account page. Upon confirmed deletion, all personal data will be permanently removed within 30 days.

6. Contact

For privacy questions or data requests, email us at [email protected].