Last updated: 10 March 2026
BioGain uses minimal cookies and browser local storage. We don't use tracking cookies, advertising cookies, or any third-party analytics that track individual users.
We use your browser's localStorage (not cookies) to store preferences and session data:
| Key | Purpose | Duration |
|---|---|---|
| biogain-token | Authentication session token | Until logout or 30 days |
| biogain-user | Cached user profile (email, plan) | Until logout |
| biogain-theme | Light/dark mode preference | Persistent |
| biogain-role | Developer or Ecologist role selection | Persistent |
| biogain-onboarded | Whether you've seen the onboarding tour | Persistent |
| biogain-results | Most recent assessment results (for sharing) | Until next assessment |
Cloudflare, our hosting provider, may set the following cookies for security and performance:
| Cookie | Purpose | Duration |
|---|---|---|
| __cf_bm | Bot management — distinguishes humans from bots | 30 minutes |
| cf_clearance | Security challenge clearance | Up to 15 minutes |
These are strictly necessary cookies and do not require consent under UK GDPR/PECR.
Our map provider (Mapbox) may use local storage for map tile caching and performance. This contains no personal data.
You can clear localStorage at any time through your browser's developer tools (F12 → Application → Local Storage → Clear). This will log you out and reset your preferences.
Questions? Email max@sodastudios.com.