Privacy Policy

1. Introduction

PhonetiSync ("we", "our", "us") values your privacy. This Privacy Policy details how the PhonetiSync Chrome Extension and Web Portal handle personal information, permissions usage, and copyright materials.

2. Chrome Extension Permissions & Usage

• activeTab: Used exclusively to detect current video player playback details, page title metadata, and inject subtitle side panels on YouTube.
• storage: Used to persist user credentials (JWT auth tokens) locally to manage song limits and credit balances.
• Host Permissions: Used to communicate with our API backend and external free lyrics repositories (https://lrclib.net).

3. Data Collection & Storage

• User Account: Email and OAuth profiles processed through Clerk. We store credit balances and transaction audit ledgers.
• Scaffolding Progress: Play logs and song familiarity marks to optimize learning states.
• User-Contributed Lyrics: Lyrics pasted manually via the untimed fallback paste panel are stored on our database to fetch phonetic guides.

4. Data Sharing & Security

We do not sell user data. All operations with generative AI services (Gemini) are handled server-side. No user API keys or personal details are sent to OpenAI or Google AI Studios directly from client bundles.