Privacy Policy
Last updated: February 2026
1. Information We Collect
When you use Japanese SenSei through Telegram, we collect your Telegram user ID, display name, and language preferences. We also store your learning data including vocabulary progress, quiz scores, and conversation history with your AI teacher.
2. How We Use Your Data
Your data is used exclusively to personalise your learning experience — adapting to your JLPT level, scheduling flashcard reviews, and improving your teacher's responses. We never sell your data to third parties.
3. Data Storage and Security
Your data is encrypted in transit and at rest. We use industry-standard security measures to protect your information. Conversation data is stored on secure servers and never shared externally.
4. Your Rights
You can request to view, export, or delete your data at any time by contacting us through Telegram or email. Deletion requests are processed within 30 days.
5. Analytics
We use Vercel Analytics to understand how visitors use our website. This data is anonymous and does not include personal information. We do not use third-party tracking cookies.
6. Contact
For privacy-related inquiries, email us at japanese.sensei.app@gmail.com or message us through our Telegram support channel.