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How we check prices (and what the history badge means)

We record the price of every product we list, every day, at every store. Here is what we do with that.

By Juciê Silva · Sep 25, 2026

A deals site that only repeats a store's "was $X" label is a billboard for the store. We wanted something better, so since September 19, 2026 we keep our own record.

What we record

Every fetch cycle (every 10 minutes, every 5 during sale events), each offer that passes our filters is stored with its store, product identifier and price. Once a day, that becomes a data point in our price history. As of this writing that is more than 27,000 data points across more than 7,000 products at 25 stores. The set grows every day.

We record the price the source showed, not the list price. List prices are the store's claim; the price is what you would pay.

What you see on the offer page

Once a product has been recorded on more than one day, the offer page shows the price history. It is a simple line: dates on the bottom, price on the side. Three things are worth reading from it:

When we have only one data point, we do not draw a chart and we do not claim anything. A single day is not history.

The green "lowest price we've seen" mark

When today's price is the lowest in our record for that product at that store, and we have at least a week of data, the offer gets a green mark. This is the mark to look for. It is the only claim on our site that comes from our own data and not from the store.

The mark is honest but young. Our record started in September 2026, so "lowest we've seen" means "lowest since September", not "lowest ever". As the record grows, the mark gets stronger. We say the date range on the page so you can judge for yourself.

What we do not do

Other tools you should use

For Amazon products specifically, CamelCamelCamel and Keepa have years of history and browser extensions. For everything else, there is no equivalent public database. That is the gap we are filling, one day at a time.

Written with AI assistance from our own price data and reviewed by Juciê Silva before publishing. Some links on this site are affiliate links; they never change the price you pay.