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Privacy Policy

Last updated: March 2025

What we collect

Body Battery collects your email address (for authentication and reminders), selfie images taken during scans, questionnaire responses, daily energy scores, and reflection notes you voluntarily enter. We do not collect any data in the background or outside of your active use.

How we use your data

Your selfie is sent to Anthropic's Claude API solely to extract fatigue signals used in scoring. It is not stored by Anthropic beyond the API request. Your images are stored privately in Supabase Storage and are never shared with third parties. Energy scores and reflections are used only to generate your personal forecasts and history.

Third-party services

  • Supabase — database and file storage (EU/US region)
  • Anthropic — vision API for image analysis (data not retained)
  • Resend — transactional email delivery
  • Vercel — hosting and serverless functions

Data retention

Your data is retained as long as your account is active. You can request deletion at any time from the Settings page, which permanently removes all your data including images, scores, and reflections.

Security

All data is encrypted in transit (TLS) and at rest. Selfie storage is private — images are only accessible via time-limited signed URLs generated during scoring. Row-level security policies ensure users can only access their own data.

Your rights

You have the right to access, correct, or delete your personal data at any time. Use the delete account option in Settings, or contact privacy@body-battery.app.

Changes to this policy

We may update this policy. Significant changes will be communicated via email. Continued use after notice constitutes acceptance.