Extension Privacy Policy
The short version: the MerchRadar extension collects nothing. All data stays in your browser.
What the extension does
MerchRadar displays publicly visible Amazon product research data (Best Sellers Rank, date first available, public sales and views signals, ratings and reviews) on Amazon search and product pages, and lets you save shirts to a catalog stored in your own browser.
Data we collect
None. The extension does not collect, transmit, sell, or share any personal data, browsing data, or usage data. It has no analytics, no telemetry, no error reporting, and no third-party services.
Where your data lives
Your display settings are stored with chrome.storage.sync (synced by Chrome between your own devices, controlled by your Google account). Shirts you save and your collections are stored with chrome.storage.local on your device. Nothing is ever sent to MerchRadar servers or anyone else — we couldn't see it even if we wanted to.
What the extension reads
The content script runs only on public Amazon marketplace pages (amazon.com, .co.uk, .de, .fr, .it, .es, .ca, .com.au, .co.jp) and reads the same publicly visible product information any visitor can see. It never accesses your Amazon account, orders, seller dashboard, or any logged-in data.
Permissions explained
storage — saves your settings and your local shirt catalog. activeTab — lets the popup show which product the current tab is viewing. Amazon host permissions — required to render the research overlay on Amazon pages. m.media-amazon.com — used only when you click the download button, to fetch a product image at full resolution.
Estimates
Sales figures marked EST are estimates derived from public BSR values. They are research signals, not measurements, and are computed locally in your browser.
Changes & contact
If this policy changes, the new version will be published at this address with the updated date below. Questions: contact us via merchradar.app/contact.
Last updated: July 26, 2026 · Applies to Merch Radar — Amazon Research v0.10+