Privacy Policy

Datenschutzerklärung gemäß DSGVO / GDPR

1. Responsible party (Controller)

[To be completed — see Impressum for operator contact details]

2. Data we collect

We collect the following data when you use this service:

• Email address (via Google account login)
• First name and full name (via Google account, used to display who is logged in)
• Children's learning data: quiz answers, kanji mastery levels, date of birth (for grade calculation)
• Usage data: pages visited, session duration (via Google Analytics)

3. Purpose and legal basis

• Account authentication and identification — Art. 6(1)(b) GDPR (contract performance)
• Providing the learning service and tracking progress — Art. 6(1)(b) GDPR
• Service analytics and improvement — Art. 6(1)(f) GDPR (legitimate interest)

4. Sub-processors (third-party services)

• Amazon Web Services (AWS) — cloud infrastructure, database, AI inference
• Stripe — payment processing
• Google Analytics (GA4) — usage analytics
• Amazon Cognito / Google Sign-In — authentication

5. Children's data

[To be completed — parental consent mechanism and data handling for minors]

6. Data retention

[To be completed]

7. Your rights

Under GDPR you have the right to access, rectify, erase, restrict processing of, and port your data, and to object to processing. To exercise these rights, contact us via the address in the Impressum.

8. Contact

For privacy-related enquiries, please use the contact details in the Impressum.

Last updated: 2026-03-27. The German-language version is the legally binding reference.