Privacy Policy & Data Transparency

1. Our Fundamental Privacy Commitment

Tongue Twister Online was designed with privacy as a foundational architectural constraint. We believe that vocal practice, speech exercises, and facial recordings are deeply personal. Therefore, we never upload, transmit, process, or store your recorded video files or audio tracks on remote servers or cloud databases.

All video composition, teleprompter text rendering, and MediaRecorder encoding execute exclusively inside your local browser sandbox.

2. Camera and Microphone Access

When you practice in the studio:

• Camera and microphone access is requested strictly via the standard W3C getUserMedia() browser API.
• Camera use is completely optional; you can practice and record in Audio & Practice Mode without granting camera access.
• Live video and audio frames remain in volatile browser RAM and are drawn to an HTML5 Canvas for real-time preview and export.
• Hardware access ceases immediately when you toggle the camera off, discard a take, or navigate away from the studio page.

3. Data Stored on Your Device (Local Storage)

To preserve your challenge progress and track which tongue twisters you have practiced, we utilize your browser's localStorage API:

• tt_guest_progress_v1: An array of completed challenge IDs (e.g. ["easy-1", "easy-2"]) to track progression unlocking.
• tt_recording_history_v1: A lightweight local log recording timestamps, challenge titles, and export indicators.

This data remains exclusively on your physical machine or smartphone. Clearing your browser cookies and site data completely wipes this information.

4. No Accounts Required & Zero Cloud Tracking

Tongue Twister Online does not require any Google Sign-In, user accounts, or passwords:

• You can practice, record vertical videos, unlock challenges, and download files with zero registration.
• We collect zero personal profiles, email addresses, or biometric identifiers.
• All practice progress and project metadata stay strictly within your browser's local sandbox.
• You can export, backup, or wipe your local data at any time via Device Data & Settings.

5. Video Downloads & Ownership

When you click "Download Video" after recording a take, the file is saved directly to your device's Downloads directory as a WebM file. You retain 100% unconditional ownership and commercial rights to all video files you generate using Tongue Twister Online.

6. Third-Party Analytics & Cookies

We do not sell personal data, display intrusive behavioral advertising networks, or deploy invasive tracking pixels. We use standard web font delivery from Google Fonts for our Manrope, Inter, and Source Code Pro typography.

7. Contact Our Privacy Team

If you have any questions regarding our architecture or local storage practices, please reach out through our Contact Page or email us at [email protected].