Privacy, handled with the same care as the reading experience.

Kaizen Reader is built to help people read Japanese literature with more clarity. That same restraint applies to the way we handle personal data.

Last updated: March 10, 2026

Overview

Kaizen Reader (“we”, “our”, or “the app”) is a Japanese reading companion that helps users learn through literature. We are committed to protecting your privacy.

Information We Collect

Account information: When you create an account, we collect your email address and display name.
Reading progress: We store your library selections and reading progress to sync across devices.
Usage data: We may collect anonymous usage statistics to improve the experience.

Information We Do Not Collect

We do not collect or store payment information directly. Payments are processed through Apple's App Store on iOS and Stripe on the web.
We do not sell, trade, or share your personal information with third parties for marketing purposes.
We do not track your location.

Data Storage

Your data is stored securely on our servers. Book content downloaded to your device is stored locally and can be deleted by removing the app.

Third-Party Services

Cloudflare: For content delivery and security.
Apple Sign In: For authentication when enabled.
Google Sign-In: For authentication when enabled.
Stripe: For web payments.

Data Deletion

You can request deletion of your account and all associated data by contacting us at the email below. We will process your request within 30 days.

Children's Privacy

Kaizen Reader is not directed at children under 13. We do not knowingly collect personal information from children under 13.

Changes to This Policy

We may update this privacy policy from time to time. We will notify users of any material changes through the app or via email.

Contact

If you have any questions about this privacy policy, please contact us at support@kaizen-reader.com.