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Preview with sample data. Stores ending in .example and their numbers are generated to show how RivalSonar works.

RivalSonar

Browser extension privacy policy

Last updated 12 November 2026

The RivalSonar extension shows what an online store runs and sells, using data from RivalSonar. It works on any website, but only when you open its panel or use its right-click menu. This page explains exactly what it does with data. The RivalSonar privacy policy covers the website and your account.

What the extension reads

  • When you open the panel or pick "Analyse this store with RivalSonar" from the right-click menu, it reads the public HTML of the page in that tab to detect the store platform, theme, apps and tracking pixels.
  • It does not run in the background on the sites you visit, and it does not read pages you have not asked it to analyse.

What the extension sends to RivalSonar

  • The store domain of the page you are analysing (for example yourstore.com), so RivalSonar can look up estimated sales, best sellers and ads for that store.
  • When you connect your account, a sign-in token that tells RivalSonar which account is asking.

That is all. The extension does not collect or send your browsing history, the content of forms, your passwords or any other personal data.

What stays in your browser

  • Your settings (Chrome sync storage).
  • The sign-in token when you connect your account (extension storage, local to this browser).
  • A short in-memory cache of store lookups so the panel loads fast (cleared when the browser closes).

Uninstalling the extension deletes all of it.

What RivalSonar keeps

Our servers keep standard request logs (IP address, time and the requested address, which includes the store domain) for security and rate limits. They rotate within 30 days. For a connected browser we store a hash of its token and when it was last used. We never sell this data, never use it for ads and never share it with third parties.

Permissions

  • Active tab and scripting: to read the public HTML of the tab you are analysing, only when you open the panel or use the right-click menu.
  • Access to rivalsonar.com: to look up store estimates and to connect your account.
  • Storage: for the settings and token above.
  • Context menus: for "Analyse this store with RivalSonar" when you right-click a page or a link.
  • Downloads: only when you press the button to save a store's product list as a CSV file.

Disconnecting

Disconnect from the extension's settings or from Connected browsers. The token stops working at once. Questions: [email protected].