Privacy Policy

1. Who we are

Tamagana is operated by Tiengos. If you have any questions about this policy, contact us at contact@tiengos.com.

2. Data we collect

• Usage data — pages visited, test results, language chosen. Collected anonymously via PostHog unless you are signed in.
• Account data — email address and name if you create an account via Clerk.
• No payment data — we do not collect or store any payment information directly.

3. How we use your data

• To provide and improve the vocabulary testing service.
• To save your test history if you have an account.
• To understand aggregate usage patterns and fix bugs (analytics).

4. Third-party services

We use the following third-party services:

• Clerk — authentication and user management.
• PostHog — product analytics (EU servers).

Each service has its own privacy policy. We encourage you to review them.

5. Cookies

We use cookies strictly necessary for authentication and session management. Analytics cookies may be set by PostHog. You may disable cookies in your browser settings, though some features may not function correctly.

6. Data retention

Anonymous test results are retained indefinitely in aggregate form. Account data is retained until you delete your account. You may request deletion at any time by emailing contact@tiengos.com.

7. Your rights

Depending on your location, you may have the right to access, correct, or delete your personal data. Contact us at contact@tiengos.com to exercise these rights.

8. Changes to this policy

We may update this policy from time to time. Material changes will be communicated via the website. Continued use of Tamagana after changes constitutes acceptance of the updated policy.