Privacy Policy
Last updated: March 2026
What We Collect
Helium collects only what's needed to provide the service:
- Email address (for account creation)
- Cards, prompts, conversations, and context you save (your content)
- Sync metadata (timestamps, device identifiers for multi-device sync)
What We Don't Collect
- No analytics PII or behavioral tracking
- No fingerprinting
- No advertising data
- No cross-app tracking
- No selling of any user data
How Your Data Is Stored
Your data is stored locally on your device using SQLite. If you create an account, your data is also synced to Supabase (hosted on AWS) with row-level security — only you can access your data.
Screenshots are stored in Supabase Storage with per-user path isolation. No other user can access your files.
AI Features
When you use AI features (auto-crop, Ask Your Library, context management), your content is sent to Claude (Anthropic) via server-side edge functions. Your data is never used to train AI models. Anthropic's API has a zero-retention policy for API inputs.
The Claude API key is stored server-side and never exposed to the client.
Prompt Sharing
When you share a prompt publicly, only the prompt title, description, tags, variable names, and a text preview are visible. Your identity, email, and other account information are never shown on the public share page.
Account Deletion
You can delete your account at any time in Settings. This permanently removes all your data: cards, prompts, conversations, screenshots, embeddings, projects, and your auth account. Shared prompts are revoked. This action is irreversible.
Cookies
The web app uses HttpOnly, Secure, SameSite=Strict cookies for authentication only. No tracking cookies, no third-party cookies.
Contact
Questions about privacy? Email us at privacy@helium.app