PriceProven

Hey everyone quick update since launching here a month ago.

We've now checked 20,070 discount claims against our own daily price history, and 16,816 of them turned out to be inflated (the seller's "before" price wasn't the real recent price). We're tracking 79,119 listings and have logged 1,121,570 individual price readings so far.

I build a tool that records AliExpress prices once a day and stores each reading with its date. A month in, one number keeps surprising the people I show it to.

Of the 72,898 listings we track, 65,462 changed price at least once in 34 days - 89.8%. Only 7,436 held a single price the whole time. There was no sale event in that window.

That breaks the mental model most shoppers have, which is that prices sit still and drop on announced sale days. For most of the catalogue the price is simply in motion all the time.

Two things I am genuinely unsure about, and would like other makers' read on.