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Privacy policy

Last updated: June 9, 2026

1. Introduction

Visus ("we", "our", or "us") is an advanced speed reading platform. We are committed to protecting your privacy and ensuring that your personal information is handled in a safe and responsible manner. This Privacy Policy outlines how we collect, use, and safeguard your data when you use our web application and Progressive Web App (PWA).

2. Google OAuth & Limited Use

Visus allows you to sign in using your Google Account for seamless synchronization across devices.

Visus’s use and transfer of information received from Google APIs to any other app will adhere to Google API Services User Data Policy, including the Limited Use requirements.

We do not sell your Google user data to third parties, nor do we use it for serving advertisements or for any purpose other than providing and improving the Visus reading experience.

3. Information We Collect

  • Personal Information: When you sign in with Google, we collect your email address and name to identify your account and sync your reading library.
  • Reading Progress: We store metadata about your books (titles, authors) and your reading progress (last word read, WPM settings, accuracy stats) to provide a consistent experience across devices.
  • Local Storage: Your uploaded books (ePUBs, PDFs, Text) are stored locally in your browser (IndexedDB) and are only synced to our secure cloud if you explicitly enable cloud backup.

4. How We Use Your Information

We use the collected information to:

  • Manage your account and provide authentication.
  • Synchronize your library and reading stats across multiple devices.
  • Analyze platform performance and improve our RSVP and clustering algorithms.
  • Communicate with you regarding support or critical platform updates.
  • Improve security and prevent unauthorized access.

5. Data Retention & Deletion

We retain your information as long as your account is active. You may request the deletion of your account and all associated data at any time through the workspace settings or by contacting our support team. Upon request, all personal information and cloud-synced data will be permanently deleted from our servers.

6. Security

We implement industry-standard security measures, including encryption and secure authentication protocols (OAuth 2.0), to protect your data. However, no method of transmission over the internet is 100% secure, and we cannot guarantee absolute security.

7. Contact Us

If you have any questions or concerns about this Privacy Policy, please contact us at:
support.visus@gmail.com

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