Privacy Policy — ClaudeMaster Pro

Last updated: May 25, 2026

1. Introduction

ClaudeMaster Pro ("we", "our", "the extension") is a Chrome extension designed to enhance the Claude AI experience on claude.ai. We are committed to protecting your privacy.

2. Data We Collect

ClaudeMaster Pro stores the following data LOCALLY on your device only:

• User preferences: theme, language, settings
• Saved conversations: Claude conversations you choose to save
• Custom prompts: prompts you create yourself
• License information: email and license key for Pro activation

3. Data Storage

100% Local Storage. All your data is stored exclusively on your own device using Chrome's local storage API (chrome.storage.local). We do NOT have access to any of your data. We do NOT have any external server storing your information.

4. Third-Party Services

The ONLY external communication occurs during license activation:

• Gumroad API (api.gumroad.com): When you activate your Pro license, we send your email and license key to Gumroad's official API to verify your purchase. This is the only external data transmission.

We do NOT use:

• Google Analytics
• Facebook Pixel
• Any tracking service
• Any advertising network