Privacy Policy

Last updated: March 3, 2026

1. Overview

MeMind ("we," "our," or "us") is a Chrome extension and web service that helps you organize conversations from AI chat platforms. This Privacy Policy explains what data we collect, how we use it, and your rights.

2. Data We Collect

2.1 Local Data (Extension Only — Free Tier)

By default, all conversation data is stored locally in your browser's IndexedDB. This data never leaves your device unless you opt into cloud sync. Local data includes:

  • Conversation titles and metadata from supported AI platforms
  • Message content (your prompts and AI responses)
  • Organization data (labels, favorites, archives)
  • Extension settings and preferences

2.2 Cloud Data (Opt-In — Pro Tier)

When you enable cloud sync (Pro subscription), your conversation data is encrypted in transit and stored securely on our servers (Supabase). Cloud data includes:

  • All locally stored conversation data
  • Your email address (for authentication)
  • Subscription and billing information (processed by Square or Stripe)

2.3 Account Data

When you create an account, we collect your email address for authentication purposes. We use Supabase Auth with OTP (one-time password) login — we do not store passwords.

3. Chrome Extension Permissions

The MeMind extension requires the following permissions:

  • tabs — To detect when you're on a supported AI chat platform (ChatGPT, Claude, Gemini, Grok, Perplexity, DeepSeek) and activate the extension.
  • scripting — To read conversation data from AI chat pages and sync it to your local database.
  • cookies — Required for authentication with certain platforms (e.g., NotebookLM).
  • storage — To store extension settings and preferences.

4. How We Use Your Data

  • To provide conversation syncing and organization features
  • To enable search and filtering across your conversations
  • To provide cloud backup and cross-device access (Pro)
  • To process payments and manage subscriptions
  • To provide the Agent API for authorized third-party integrations
  • To improve the service and fix bugs

5. Data Sharing

We do not sell your data to third parties. We share data only with:

  • Supabase — our database and authentication provider
  • Square / Stripe — our payment processors (only billing information)
  • Agent API consumers — only when you explicitly grant access, and only your own data

6. Data Retention & Deletion

Local data: Stored in your browser until you uninstall the extension or clear browser data.

Cloud data: Stored as long as you maintain an account. You can delete all cloud data at any time from the Account page in the MeMind website. When you delete your account, all cloud data is permanently removed.

7. Security

All data transmitted between the extension and our servers is encrypted using TLS. Cloud data is stored in a secure database with Row Level Security (RLS) policies ensuring you can only access your own data. Supabase provides SOC 2 Type II compliant infrastructure.

8. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by updating the "Last updated" date at the top of this page.

9. Contact

If you have questions about this Privacy Policy, please contact us at privacy@memind.co.