UnitBalance — Compare This Product

Click the toolbar icon while viewing a product on AliExpress, eBay, Allegro or Amazon to see its price, rating, seller and shipping compared side by side against the same product on the other three sites — no need to hunt down equivalent listings yourself. - Reads only the page you're already on, only when you click (no background activity, no tracking, no accounts). - Matching across sites is conservative: it only calls two listings the same product when model, size, color and condition all agree. - Turn off any site from the extension's Options if it's unreliable from where you are. Free, no ads, no account required. Privacy policy: https://unitbalance.com/privacy.html