Steeping

Steeping: Dual Listening for YouTube — Privacy Policy

Last updated: June 2, 2026

Steeping: Dual Listening for YouTube ("the extension") plays every sentence of a captioned YouTube video twice — first in the original audio, then a spoken translation in the user's language — as a study aid for language learners. This policy explains what the extension does with data.

What the Extension Accesses

On YouTube watch pages (youtube.com/watch):

  • It reads the video's caption / subtitle track (the transcript) to build the bilingual playback. Captions come from YouTube's own caption data.
  • It adds the playback controls and the bilingual subtitle overlay to the page.

On language.steepingworld.com:

  • It reads your existing sign-in session so you do not have to log in twice. You sign in on the website with your normal account.

The extension is not active on any other website.

What Is Sent Off Your Device

To produce the spoken translation, the extension sends the caption text of the video you are playing to our backend at language.steepingworld.com, which then translates the text (Google Gemini API), generates speech for the translation (Google Cloud Text-to-Speech), and records usage against your account for billing.

The extension does not send your browsing history or your activity on other websites.

What Is Stored

  • On your device (chrome.storage): your chosen translation language and your sign-in session token.
  • On our backend: the generated translation audio clips and usage records tied to your account, handled under our main Privacy Policy.

Third-Party Services

  • Google: Gemini API (translation) and Cloud Text-to-Speech.
  • Supabase: Authentication and database hosting.
  • Stripe: Payment processing.

We do not sell your data and do not use it for advertising or tracking.

Permissions

  • storage — save your language preference and keep you signed in.
  • Access to youtube.com — add the playback UI and read video captions.
  • Access to language.steepingworld.com — sign you in and request translations and speech from the backend.

The extension does not load or execute remote code; all of its code ships in the published package.

Your Account and Data

Your account, billing, and account deletion are managed through language.steepingworld.com. Deleting your account removes the associated data as described in the main Privacy Policy.

Contact

Questions? Reach out via the feedback form on our Roadmap page.