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How Buy Fast auto-applies coupons (and what it never does)
What Buy Fast can clip or apply on Amazon and Flipkart, what stays manual, and how checkout control works.
What gets applied automatically
On Amazon, Buy Fast clips eligible coupons shown on the product page when you flip ON. On Flipkart, available bank offers and SuperCoins can apply when your account qualifies.
Coupons still follow retailer rules — minimum order value, eligible cards, or first-time user restrictions. Buy Fast cannot override those limits.
What Buy Fast does not do
It does not invent coupon codes or bypass retailer terms. It does not store your payment PIN, UPI MPIN, or card CVV. Turn the product-page toggle OFF if you only want price history and coupons.
If a coupon fails, you can still complete checkout manually. Send a bug report with the product URL if a known coupon stopped working after a site update.
Checkout control
Checkout runs in your browser on Amazon and Flipkart using your saved address and payment. Turn the product-page toggle OFF if you only want price history and coupons.
Try Buy Fast free
Install on desktop Chrome, set payment once, and flip ON on sale day. Toggle OFF on the product page if you only want price history and coupons.