Privacy Policy

1. Who We Are

BrainTier (“we”, “us”, “our”) operates the BrainTier website and related services. This policy describes how we collect, use, and protect your personal information when you use our service.

2. Information We Collect

• Account data: email address, display name, and avatar when you register.
• Quiz activity: your answers, scores, XP, and progression data.
• Usage data: IP address, browser user-agent, and session information collected automatically for security and fraud prevention.
• Ad interaction data: impressions, clicks, and view events associated with advertisements shown on the site.
• Consent records: records of your cookie and marketing consent choices.

3. How We Use Your Information

• To provide and improve the quiz service.
• To track your progress, XP, levels, and badges.
• To detect and prevent fraudulent activity and abuse.
• To display relevant advertisements and measure their performance (where you have consented).
• To send you service-related communications.

4. Advertising

We work with Google AdSense to display advertisements. Google may use cookies and similar technologies to serve ads based on your prior visits to this and other websites. You can opt out of personalised advertising by visiting Google Ads Settingsor by selecting “Essential Only” in our consent banner. Premium users do not see third-party advertisements.

5. Cookies

We use cookies for authentication, remembering your preferences (such as dark mode and consent choice), and — where you have consented — for personalised advertising. You can manage your consent at any time using the banner at the bottom of the page.

6. Data Sharing & Do Not Sell

We do not sell your personal data. We share data only with:

• Supabase — authentication and database hosting.
• Google AdSense — ad serving (where consented).

7. Data Retention

We retain your account data for as long as your account is active. You may request deletion at any time from your Profile page. Ad event logs are retained for up to 12 months.

8. Your Rights

Depending on your location you may have rights to access, correct, or delete your personal data, and to object to or restrict certain processing. To exercise these rights, delete your account from your Profile page or contact us.

9. Children

This service is not directed at children under 13. We do not knowingly collect data from children under 13. If you believe we have done so, please contact us and we will delete it promptly.

10. Contact

Questions about this policy? Contact us at the email address on file with your account.