Privacy Policy

Last updated: January 2026

What We Collect

When you use Bayesian Truth Serum, we collect only the information you provide directly:

  • Survey questions and answer options you create
  • Your name when responding to a survey
  • Your answer and predictions when responding

How We Use It

Your data is used solely to calculate BTS scores and display survey results. We do not sell, share, or use your data for any other purpose.

Data Retention

All survey data is automatically deleted after 30 days. We do not retain backups of deleted data.

Cookies

We do not use cookies or tracking technologies. We do not use analytics services.

Third Parties

We use Vercel for hosting and Upstash for data storage. If you donate, payment is processed by Stripe under their privacy policy.

Contact

Questions about this policy? Reach out via the project's GitHub repository.