About the toolkit
Shopping math for the decision in front of you.
Which Deal's Better? exists for the moment when sticker prices, package sizes, and sale language point in different directions. A cheaper package can contain less. A bigger discount can produce a higher final price. A promotion can lower the price per item while requiring a larger checkout total.
How the tools work together
Compare Deals normalizes amounts, multipacks, and compatible units. The Buy X Get Y Calculator applies BOGO promotion groups and compares checkout totals with effective item prices. The Coupon Comparator works from sale prices and coupon values, while the Usage Tracker records how long a purchase lasts.
The goal is transparent decision support, not a recommendation from a retailer. The site does not retrieve offers, rank brands, or earn a different result based on which store or product wins.
No account required
Calculations happen in your browser. Usage records remain in local storage on this device unless you delete them or clear browser data. The optional “Track this purchase” action uses browser session storage to carry a winning deal into the tracker without putting item details in a URL.
Know what the number leaves out
Lowest unit price is useful, but it does not measure shelf life, storage, product quality, cash available today, or promotion eligibility. The site shows its formulas and limitations in the methodology so you can decide which factors matter for your purchase.