What BuyFast is
BuyFast is a Chrome extension that helps you shop smarter on supported e-commerce sites:
optional one-click checkout on Amazon and Flipkart, price-history charts on Amazon, Flipkart,
Myntra and Ajio, Amazon coupon helpers, and affiliate link attribution so the extension can
stay free. Affiliate attribution also runs on Shopsy, Nykaa, Nykaa Fashion, Tira, and Meesho
(no checkout automation on those sites).
What we collect
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Settings stored on your device — payment preference, quantity, sound,
theme, price-history toggle, and similar options via Chrome storage. These stay on your
browser unless you clear extension data.
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Product page data for charts — when you view a supported product page
with price history enabled, BuyFast sends the product page URL, product id (for example
Flipkart pid, Amazon ASIN, or Myntra/Ajio product id) and the displayed price to
https://api.shoppingenie.in/pricehistory over HTTPS so we can return the
chart and deal signal.
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Affiliate configuration — affiliate tag / UTM strings arrive in the
price-history responses above so product links can attribute correctly. If a link you
open already carries one of our own affiliate tags, BuyFast leaves it unchanged. No login
or account is required.
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Anonymous install ID and product opens — on install BuyFast creates a
random ID (not linked to your name, email, or Google account) and stores it in Chrome
storage. When you open an Amazon or Flipkart product page, BuyFast sends that ID, the
extension version, the product id, title and displayed price to
https://api.shoppingenie.in/pv, and includes the ID and version with
price-history requests. We use this to count active installs per version and to detect
bulk / reseller ordering that abuses our affiliate links (such installs may stop
receiving the Flipkart affiliate tag for a limited time). Product-open records are
deleted after 7 days. No IP-based profiling is done.
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Uninstall feedback (optional) — if you uninstall, Chrome may open a
feedback page you can skip. Any reason you submit is only used to improve BuyFast.
What we do not collect
- No account, email, or password for BuyFast itself
- No payment card numbers, UPI pins, or bank passwords (checkout uses the retailer’s own pages)
- No advertising profiles, cross-site tracking for ads, or sale of your data
- No analytics SDKs or third-party trackers — only the product/price calls described above
How we use data
Product URL, id and price are used only to provide price-history charts and related deal
signals, and to keep affiliate attribution current. The anonymous install ID and product
opens are used only for install counts and affiliate-abuse (bulk ordering) detection. Local
settings are used only to run checkout helpers and UI preferences you chose.
Sharing
Price-history and affiliate-config requests go to our API at
api.shoppingenie.in. We do not sell personal data. We do not transfer data for
credit scoring or unrelated advertising. Affiliate networks may receive standard referral
parameters when you open a merchant product page (same idea as normal affiliate links).
Security
Data in transit to our API uses HTTPS. Extension pages restrict script sources via Content
Security Policy. We do not load remote executable code into the extension package.
Your choices
- Turn price history off in the BuyFast popup to stop chart API calls. Product-open pings continue while the extension is installed and enabled.
- Leave BuyFast checkout toggles off to browse without auto-checkout. Affiliate tags on shopping links still apply so BuyFast can stay free.
- Uninstall the extension or clear site/extension storage anytime in Chrome settings.
Limited Use disclosure.
BuyFast complies with the Chrome Web Store User Data Policy, including Limited Use.
We use data only to provide or improve the extension’s disclosed shopping features
(price history, checkout helpers, affiliate attribution for a free product, and protecting
that attribution from abuse). We do not
sell user data or use it for unrelated advertising.
Contact
Questions: [email protected]