Sumi

Privacy Policy

Last updated: February 21, 2026

Overview

Sumi is a browser extension that helps you watch YouTube intentionally by hiding algorithmic content like the homepage feed, Shorts, and sidebar recommendations. Your privacy is important to us, and Sumi is designed to work with minimal data.

Data We Store

All extension data is stored locally on your device using Chrome's built-in storage API. This includes your session preferences (duration, daily session count) and session state (timer, pause status). This data never leaves your browser.

Data We Collect

Sumi does not collect, transmit, or sell any personal data. We do not track your browsing history, watch history, or any other activity. No analytics or telemetry is sent from the extension.

Account Data

If you create a Sumi account for Pro features, we store your email address and subscription status via Supabase (our authentication and database provider). Payment processing is handled by Stripe. We do not store your payment details.

Permissions

  • storage — saves your preferences and session state locally
  • activeTab — interacts with the current YouTube tab to apply the content shield
  • alarms — powers the session countdown timer
  • scripting — injects content scripts on YouTube to hide algorithmic content
  • host permission (youtube.com) — required to modify the YouTube UI and hide feed, Shorts, and recommendations

Changes

We may update this policy from time to time. Any changes will be reflected on this page with an updated date.

Contact

If you have questions about this policy, reach out at support@trysumi.com.