How it works

Where the prices come from

A collector visits the public listing pages of major pet stores once a day and records the price shown for each tracked product. PetSmart is the launch store, with Chewy products being added from its published best-of lists; more stores join when their pages can be read reliably. Every price on this site is a price that was actually shown by the store on the date printed next to it.

The history is the point

Store prices are shown once and then overwritten, and no store keeps a public history. This site keeps one. A price that looks like a bargain means little until it is compared with what the same product cost last month, which is what the charts and verdicts are for.

Verdicts

Stock-up verdicts compare today's cheapest tracked price with the product's own last 90 days. A product needs at least 30 days of tracked history before any verdict is shown; until then the page says so. Per-unit prices use the package size printed on the listing; where no size is published, no per-unit price is shown rather than an estimated one.

Amazon

Amazon's affiliate rules allow its prices to be displayed only when they are served by Amazon's own service, so this site shows no Amazon prices. Product pages carry a button that checks the price on Amazon itself.

Disclosures

As an Amazon Associate, Kibble & Litter earns from qualifying purchases made through links on this site (tag kibbleandlitter-20). Store links may also earn a commission under each store's own affiliate program where one is active. Commissions never change the prices recorded here; the collector records the listed price whether or not a link earns anything.