Privacy policy

Chinese Trainer (chinesetrainer.com). Contact: javiergarciafloriano@gmail.com. Data linked to your account (email, name, Google profile image) is used for authentication and learning personalization.

Vocabulary progress, study sessions, AI tutor messages (Premium users), language preferences, and notifications. Stripe handles payments; we don't store card numbers.

The Chinese Trainer Android app collects the same account and progress data as the website. We use Google Sign-In for authentication, Firebase Analytics for anonymous usage statistics (screens visited, learning events), and optional push notifications if you enable them in Settings. We do not sell your data or use it for third-party advertising.

If you use the AI tutor, masterclass, automatic translations, or AI-generated readings/listening, we send the necessary text to OpenAI (GPT-4o-mini) to generate responses. Chat messages and tutor memories are stored in our database to personalize your experience. You can request deletion via /contact.

Contract performance (account and subscription), legitimate interest (product improvement), and consent where applicable (non-essential cookies, push notifications).

Google (sign-in and in-app analytics), Stripe (payments), OpenAI (Premium AI tutor), Neon (database), Render (hosting), Expo/EAS (app distribution). Each provider has its own privacy policy.

You can request access, correction, or deletion of your data at javiergarciafloriano@gmail.com or via /contact. You can also export your vocabulary from Settings. Delete your account or partial data at /delete-account.