Privacy Policy

Last updated: February 21, 2026

1. Information We Collect

We collect information you provide directly to us when you create an account, such as your name and email address. We also collect data regarding your textbook progress to provide tailored AI content.

2. How We Use Your Data

Your data is used to personalize your learning experience, process payments, and improve our AI generation algorithms. We do not sell your personal data to third parties.

3. AI and Data Processing

To generate stories, some non-identifiable data (like your current vocabulary level or textbook chapter) may be processed by third-party AI providers (such as OpenAI). No personally identifiable information is sent to these AI models.

4. Cookies and Analytics

We use cookies to keep you logged in and Vercel Analytics to understand how users interact with Bunmyaku. This helps us find bugs and improve the user experience.

5. Data Retention

We store your data for as long as your account is active. You may request account deletion at any time by contacting us, which will remove your personal information from our active databases.

6. Security

We implement industry-standard security measures to protect your data. However, no method of transmission over the internet is 100% secure, and we cannot guarantee absolute security.

7. Contact Us

If you have questions about this Privacy Policy, please reach out at:
support@bunmyaku.app