Hi Product Hunt 👋

RadarPromo started from a simple frustration: French online shops are full of "−70 %" labels, and too often the crossed-out price was never actually charged. Checking every deal by hand across dozens of sites is impossible.

So we built a radar (its name is Bippy 📡):

• every deal published on radarpromo.fr is checked against other merchants and against the product's own price history;

• the browser extension brings that check to the product page you're on: cheaper elsewhere?, dated prices, 12-month history, and a price-drop alert in two clicks.

It's free, ad-free, and we don't sell data. It's French-only for now (French and European merchants).

We'd love your feedback, especially on what would make you trust a deal at first glance.