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Privacy Policy

Privacy Policy

Privacy Policy

Last updated
2026-11-02
Version
1st edition
Consent text
consent-us-2026-11-11-A (shown on the first-run consent screen)
Applies to
The Supply Price Check Chrome extension

This policy explains how the Supply Price Check operator ("we") handles information in the Supply Price Check browser extension ("the extension").

1. Information the extension sends

The extension works on product pages at Amazon.com, Staples and Office Depot. Nothing is sent until you agree on the consent screen. If you choose not to agree, the extension makes no requests at all, including price lookups.

1-1. Sent whenever you use the extension after agreeing

Comparison fields
InformationField name
Site of the product page you openedsupplier
Product number (SKU or ASIN)sku
Sites enabled for comparisonsites
Random install ID, also used as an authentication token. It is not linked to your name or store accounts.install_id / X-Ec-Ext-Install-Token

1-2. Sent only when Collection Mode is on

Collection Mode improves comparison data. The checkbox on the consent screen starts checked. Clear it to use comparisons only. You can turn it off at any time in Settings.

Collection Mode fields
InformationField name
Product nameitem_name
Product numbersku / site_sku_raw
Listed price, before sales tax (the two technical fields contain the same listed price in the US extension)price_incl_tax / price_excl_tax
Unit price text shown by the siteunit_price_text
Specification tablespec
HTML of the specification table onlyspec_html
Category breadcrumbbreadcrumb / breadcrumb_items
Brandbrand
UPC or GTIN, if showngtin
Product page URL, with query parameters removedurl / canonical_url
Product image URL (not the image itself)image_url
Whether a promotion is shown, with an excerpt of up to 80 characterspromo
Popularity tags: a rough band for the number of customer reviews and the average star rating; on Amazon.com also a rough band for the best-seller rank and the “bought in past month” figure shown on the page. Never review text or exact figurespopularity
Signed-in status (signed in, signed out or unknown)price_context
Account type when signed in, such as Prime or Business. No account name or number.context_detail
Install ID, extension type and extension versioninstall_id / channel / client_version
Fixed market and currency identifiers for this US extensionmarket / currency

1-3. Information the extension does not send

The extension sends only fields on an allow list. It does not send:

  • Your name, email address, postal address or phone number
  • Store account details such as account names or member numbers
  • Cart contents, order history or payment details
  • Browsing outside supported product pages
  • Clicks, scrolling, keystrokes or time on page
  • Full-page HTML, product descriptions or reviews

2. How we use it

  1. To calculate and show unit price comparisons
  2. To create and improve product matching data
  3. To investigate problems and improve the extension

Comparison data is built from product information sent through the extension, including from pages we open ourselves. The extension never opens or browses pages on your behalf.

3. Where it goes

Information is sent to servers we manage on Google Cloud Platform. It is stored in the asia-northeast1 (Tokyo, Japan) region, so it is transferred outside the United States. Only we can access it.

4. How long we keep it

We keep information for as long as needed for the purposes in Section 2. We do not set a fixed period. Deletion requests are handled under Section 6.

5. Sharing and sale

We do not sell your information, share it for advertising, or provide it to third parties, except where the law requires it. Google Cloud Platform stores and processes information for us as a service provider.

If this changes, we will update this policy and ask for your consent again in the extension.

6. Deletion requests

You can request deletion of data linked to your install ID with the "Request deletion of sent data" button in Settings, or by contacting us (Section 10). We delete it within 60 days of receiving the request. You can make a request even after withdrawing consent or removing the extension.

7. Data stored on your device

The extension does not set cookies. Your settings, consent status and install ID are stored in the browser's extension storage (chrome.storage).

8. Children

Supply Price Check is a tool for business purchasing. It is not directed to children under 13, and we do not knowingly collect their information.

9. Changes

We post changes on this page. If we change the information sent or how it is used, we will ask for your consent again in the extension, and the change will not apply until you agree.

10. Contact

Supply Price Check operator

eco.buy.ext@gmail.com

End of policy