Effective: July 1, 2026 | Contact: privacy@silverback.app
We collect information you provide directly: name, email, body metrics (height, weight, body fat), fitness data (workouts, nutrition logs, sleep), and health check-in responses. We also collect usage data (pages visited, features used, session duration) and device data (browser type, operating system, IP address).
Your data is processed by Anthropic's Claude AI to generate coaching responses, briefings, and insights. We send only the minimum necessary data to generate responses. Anthropic's privacy policy applies to data processed through their API. We do not use your data to train third-party AI models without your explicit consent.
Silverback collects health-related data including fitness activity, sleep patterns, nutrition logs, and body metrics. This data is stored securely in Supabase with row-level security. We are not a HIPAA-covered entity and do not provide medical advice. Do not use Silverback as a substitute for professional medical care.
We do not sell your personal data. We share data only with: (a) Supabase for database hosting, (b) Anthropic for AI processing, (c) Stripe for payment processing, (d) Vercel for application hosting, (e) legal authorities when required by law.
Active account data is retained for the duration of your subscription plus 90 days. After account deletion, we remove personal data within 30 days except where required by law. Aggregated, anonymized analytics may be retained indefinitely.
You have the right to: access your data, correct inaccuracies, delete your account and data, export your data in machine-readable format, and opt out of non-essential communications. You can delete your account and all associated data directly in the iOS app (Profile → Privacy & Security → Delete Account) or by contacting privacy@silverback.app. Deletion is immediate and removes your profile, workouts, community content, and photos.
We use Supabase Row-Level Security (RLS), AES-256 encryption at rest, TLS 1.3 in transit, and role-based access controls. However, no system is 100% secure. Report security vulnerabilities to security@silverback.app.
Silverback is not intended for users under 13. We do not knowingly collect data from children. If you believe a child has provided us data, contact privacy@silverback.app.
We may update this policy and will notify you via email or in-app notification of material changes at least 30 days before they take effect.
Silverback includes optional community features. Your profile is private by default; if you opt in to a public profile, other users can see your username, avatar, level, XP, and achievements — never your email, name, birth date, or body metrics. Content you choose to share (workout plans, challenges, and feed posts with their captions) is visible to the audience you select (your followers, or the community for public shares). Workout cards on the feed show computed training statistics (volume, estimated 1RM, personal records) from the workout you chose to share. You can block users (hiding you from each other entirely), report any content or profile, and delete your own posts at any time. Reports are reviewed by our moderation team. The iOS app collects the same categories of data as the web app and adds none; there is no advertising and no third-party tracking in either.