Cookie Policy

Last updated: August 2026

This Cookie Policy explains how Merphils ("we", "us", or "our") uses cookies and similar local storage technologies when you visit or use our platform and applications.

1. Essential Session Cookies

We use HTTP-only authentication cookies provided by Better Auth to securely verify your identity, maintain active sessions, and prevent cross-site request forgery (CSRF).

2. Local Storage & Theme Preferences

We use browser local storage (e.g. merphils.theme) to store your preferred appearance setting (Light, Dark, or OS System theme) so your preferences persist smoothly across sessions.

3. Offline Storage

For progressive web app (PWA) offline capabilities, Merphils uses IndexedDB (via PowerSync and Serwist service workers) to temporarily cache classroom records when internet connectivity is intermittent.

4. Your Choices

You can clear your cookies and browser local storage at any time through your browser settings. Note that disabling essential session cookies will prevent you from signing in to your account.