Privacy Policy

Last updated: February 2026

Overview

READEO is a speed reading application available as an Android app and Chrome extension. It helps users read YouTube video transcripts using RSVP (Rapid Serial Visual Presentation) technique. We are committed to protecting your privacy.

Data Collection

We collect minimal data and only when you choose to sign in.

Without an account:

• No personal information is collected
• No tracking or analytics
• All preferences stored locally on your device

With a Google sign-in (optional):

• Your email address is used for authentication only
• Reading history is synced to the cloud for convenience
• You can sign out and delete your data at any time

Data Storage

Mobile app: Reading preferences and history are stored locally using device storage. If signed in, history is also synced to a secure cloud database (Supabase).

Chrome extension: All data is stored locally using Chrome's built-in storage API. No data is sent to external servers.

Transcript Data

When you load a YouTube video transcript:

• The transcript is fetched through our secure API
• Transcripts may be cached to reduce load times
• No personally identifiable information is attached to cached transcripts

Third-Party Services

• Google Sign-In (optional) — for account authentication
• Supabase — for cloud sync of reading history (signed-in users only)
• YouTube — for fetching video transcripts and metadata

Children's Privacy

READEO does not knowingly collect any information from children under the age of 13.

Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page.

Contact

Questions about this Privacy Policy? Contact us at support@readeo.app.

Summary

READEO is designed with privacy as a core principle. Use it without an account and zero data leaves your device. Sign in only if you want cloud sync — and you can delete everything at any time.