Privacy Policy

Your privacy is important to us. Learn how we collect, use, and protect your data.

Last Updated: November 14, 2025

Introduction

Welcome to MemSync ("we," "our," or "us"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our browser extension and related services. Please read this privacy policy carefully. If you do not agree with the terms of this privacy policy, please do not use our extension.

Extension Purpose

MemSync is a browser extension with a single, clearly defined purpose: to save and synchronize your chat history across multiple AI platforms (ChatGPT, Claude, and Gemini). Our extension keeps your conversation context intact, allowing seamless transitions between different AI assistants.

Data Collection

What Data We Collect

We collect the following types of data:

What We Do NOT Collect

We explicitly do NOT collect:

How We Use Your Data

We use the collected data exclusively for the following purposes:

Important: We use your data ONLY for purposes directly related to MemSync's single purpose of managing and synchronizing AI chat conversations. We never use your data for unrelated purposes.

Permissions Justification

Storage Permission

We request storage permission to locally store your chat projects and team data on your device, enabling offline access and faster performance.

ActiveTab Permission

We need activeTab permission to read and extract chat content from the currently active tab when you're using supported AI platforms (ChatGPT, Claude, or Gemini).

Scripting Permission

The scripting permission allows us to run background scripts necessary for monitoring and saving chat conversations in real-time across supported platforms.

Host Permissions

We require host permissions for the following domains:

These permissions enable us to scrape and save your chat content for synchronization across all three platforms.

Remote Code Usage

We use remote code to enable cloud synchronization features. Specifically, we make API calls to our backend servers to store and retrieve your chat data, allowing you to access your conversations from any device. All remote code execution is limited to:

We do not load or execute any third-party JavaScript from external sources beyond our own secure backend.

Data Sharing and Third Parties

We certify that:

  • We do NOT sell or transfer user data to third parties, outside of approved use cases
  • We do NOT use or transfer user data for purposes unrelated to our extension's single purpose
  • We do NOT use or transfer user data to determine creditworthiness or for lending purposes

We may share your data only in the following limited circumstances:

Data Security

We implement appropriate technical and organizational security measures to protect your data against unauthorized access, alteration, disclosure, or destruction. These measures include:

However, no method of transmission over the Internet or electronic storage is 100% secure. While we strive to protect your data, we cannot guarantee absolute security.

Data Retention

We retain your data for as long as your account is active or as needed to provide you with our services. You can request deletion of your data at any time by contacting us or deleting your account through the extension settings.

After account deletion, we will remove your personal data from our systems within 30 days, except where retention is required by law or for legitimate business purposes (e.g., resolving disputes, enforcing agreements).

Your Rights and Choices

You have the following rights regarding your data:

To exercise any of these rights, please contact us using the information provided below.

Children's Privacy

Our services are not intended for children under the age of 13 (or the applicable age of consent in your jurisdiction). We do not knowingly collect personal information from children. If you believe we have inadvertently collected information from a child, please contact us immediately, and we will delete such information.

International Data Transfers

Your data may be transferred to and processed in countries other than your country of residence. These countries may have data protection laws that differ from those in your country. We ensure that appropriate safeguards are in place to protect your data in accordance with this privacy policy.

Changes to This Privacy Policy

We may update this privacy policy from time to time to reflect changes in our practices or legal requirements. When we make changes, we will update the "Last Updated" date at the top of this policy. We encourage you to review this policy periodically.

If we make material changes, we will provide notice through the extension or via email to the address associated with your account.

Compliance

MemSync complies with applicable data protection laws and regulations, including but not limited to:

Contact Us

If you have questions, concerns, or requests regarding this privacy policy or our data practices, please contact us:

Website:

https://memsync.opsilonlabs.com